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Abscissa
Indexpage - math word definition - Math Open Reference
Coordinates of a point
Acceleration
Calculus - Equations of Motion
Acceleration - math word definition
Accumulation-function
Calculus - Accumulation Functions
Acute
Indexpage - math word definition - Math Open Reference
Acute Angle definition
Acute triangle definition
Adjacent
Adjacent Angles definition
Adjacent arcs definition
Adjacent sides definition
Indexpage - math word definition - Math Open Reference
Algorithm
Algorithm definition
Circle and ellipse drawing algorithm
Area of a polygon algorithm
Alternate-angle
Alternate Exterior Angles definition
Indexpage - math word definition - Math Open Reference
Alternate Interior Angles definition
Alternating
Calculus - Alternating Series Test
Altitude
How to construct (draw) one of the three altitudes of a triangle
Indexpage - math word definition - Math Open Reference
Area of a triangle (conventional method)
Triangle definition and properties
Trapezoid and its properties. (Coordinate Geometry)
How to construct (draw) one of the three altitudes of a triangle
Altitude of a triangle
Analysis
Calculus - Curve Analysis - Global Extrema
Calculus - Curve analysis - special cases
Calculus - Basic curve analysis
Angle
Subtended angle definition
Complementary angle using compass and straightedge or ruler
Supplementary angle using compass and straightedge or ruler
Constructing 75, 105, 120, 135, 150 degree angles and more
Angle inscribed in a semicircle
How to use a protractor to measure angles
The sine function - math word definition
Difference of two angles using compass and straightedge or ruler
Angle measure of an arc
How to use a protractor to draw an angle
Central Angle Theorem
Interior angles of an inscribed quadrilateral
Degrees as a unit of angle measure
Angle bisector definition
Interior / exterior angles of a polygon
Angle calculator for angles expressed in Degrees, Minutes, Seconds
Interior angles of a parallelogram
Linear Pair - math word definition
Angle calculator for angles as used in the Nautical Almanac
Coterminal - math word definition
Cosine - math word definition
Arc Peripheral Angle
Reference angle
Radian - math word definition
Angle Quiz 1
Exterior Angles - math word definition
How to construct a 90 degree angle with compass and straightedge or ruler
Intersecting Secant Angles Theorem
How to copy an angle with compass and straightedge or ruler
Reflex Angle definition
Relationship of side lengths and angles of a triangle
Obtuse Angle definition
Interior of an angle definition
Inscribed angle of a circle
How to construct a 60 degree angle with compass and straightedge or ruler
Alternate Exterior Angles definition
Adjacent Angles definition
Triangle exterior angles definition
Triangle exterior angle theorem
Angle definition and properties (Trigonometry)
Included angle definition
The tangent function in right triangles - Trigonometry
Angle - Math word definition
Terminal side definition - Trigonometry
Central angle of a circle
Standard position of an angle definition - Trigonometry
Acute Angle definition
Initial side - math word definition - Trigonometry
Full Angle - An angle with a measure of 360 deg
Complementary Angles definition
Quadrantal angle - math word definition - Trigonometry
Alternate Interior Angles definition
Right Angle - math word definition
How to add two angles with compass and straightedge or ruler
Straight Angle definition
Corresponding Angles definition
How to construct a 30 degree angle with compass and straightedge or ruler
Interior Angles of a transversal definition
Vertical Angles definition
How to construct (draw) a 45 degree angle with compass and straightedge or ruler
Supplementary Angles definition
Congruent Angles
Exterior Angles of a Transversal definition
Annulus
Annulus - Math word definition
Area of an annulus
Antiderivative
Calculus - Basic Antiderivatives
Calculus - Antiderivatives from Slope
Calculus - Functions defined using integrals
Apothem
Apothem of a polygon
Arc
Arc Peripheral Angle
Sagitta definition, the height, width, radius of an arc
The inverse trigonometry functions
Major and Minor Arcs
Derivation of the arc radius formula
Radius of an Arc or Arch - Math Open Reference
Calculus - Arc Length
Arc Length definition
Intercepted arc
Adjacent arcs definition
Angle measure of an arc
Arc - Math word definition
Parts of a circle - Pictorial index
Finding the center of a circle or arc with compass and straightedge or ruler
Arc-length
Calculus - Arc Length
Arc Length definition
Arccos
The trigonometry arccos() function - inverse cosine - math word definition
Arch
Radius of an Arc or Arch - Math Open Reference
Arcsin
The trigonometry arcsin() function - inverse sine - math word definition
Arctan
The trigonometry arctan() function - inverse tangent - math word definition
Area
Derivation of the formula for the area of a circle
Area of a Kite
Area of a triangle given three sides - Heron's Formula
Area enclosed by an ellipse
Surface area of a right cone
Area and Perimeter of a Square. (Coordinate Geometry)
Trapezoid area and perimeter. (Coordinate Geometry)
Area and perimeter of a rectangle. (Coordinate Geometry)
Area of a polygon calculator
Area of a polygon algorithm
Area of any polygon (Coordinate Geometry)
Area of a triangle (Coordinate Geometry)
Surface area of a cylinder
Derivation of the surface area of a cylinder
Surface area of a cube
Area of a triangle using the box method (Coordinate Geometry)
Derivation of the formula for the area of a cone
Derivation of the formula for the area of a regular polygon
Surface area of a pyramid
Area of an inscribed quadrilateral
Rhombus area formula
Area of a circle segment
Area of a sector of a circle
Surface area of a prism
Area of an Irregular Polygon
Regular polygon area formula
Area enclosed by a circle
Area of a circle segment
Triangle similarity, ratios of area
Area of a triangle (conventional method)
Relationship of area and perimeter of a triangle
Area of a triangle (Side-angle-side method)
Area of an equilateral triangle
Area of an annulus
Derivation of the formula for the area of a trapezoid
Surface area of a sphere
Area of a square. Definition and formula
Area of a trapezoid. Definition and formula
Calculus - Polar Area
Area of a rectangle. Definition and formula
Derivation of the formula for the area of a parallelogram
Area of a parallelogram. Definition and formula
Calculus - Areas By Slicing
Indexpage - math word definition - Math Open Reference
Arithmetic
Positive number definition - math word definition
Negative number definition - math word definition
Average
Calculus - Average Value
Calculus -Average velocity and speed
Axis
Axis, axes - Math word definition
X-axis definition
The Coordinate Plane
Introduction to Coordinate Geometry
Semi-major / semi-minor axis of an ellipse
Major / minor axis of an ellipse
Cylinder as the locus of a line
Relation of a cylinder to a prism
Y-axis definition
Cylinder definition and properties
B
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Base
Base - Math word definition
Altitude of a triangle
Area of a triangle (conventional method)
Triangle definition and properties
Biography
Biography of Heron
Euclid - math word definition
Biography of Thales - math word definition
Biography of Pythagoras - math word definition
Bisector
Line segment bisector definition
How to bisect an angle with compass and straightedge or ruler
Angle bisector definition
Indexpage - math word definition - Math Open Reference
How to bisect a segment with compass and straightedge or ruler
Perpendicular bisector definition
Bounds
Circumscribed rectangle, bounding box. (Coordinate Geometry)
Box
Area of a triangle using the box method (Coordinate Geometry)
Circumscribed rectangle, bounding box. (Coordinate Geometry)
Calculus - Maximizing volume
Brahmagupta
Area of an inscribed quadrilateral
C
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Calculator
Math / scientific calculator similar to those from TI, Casio, HP etc
Area of a polygon calculator
Graphical Function Explorer grapher (GFE)
Math / scientific calculator instructions
Calculus
Calculus - Second Fundamental Theorem of Calculus
Calculus - Fundamental Theorem of Calculus
Cardinal
Cardinal numbers (Whole numbers or natural numbers)
Cardinal numbers (Whole numbers or natural numbers)
Cardinality
Cardinal numbers (Whole numbers or natural numbers)
Center
Points of concurrency
Finding the center of a circle or arc with compass and straightedge or ruler
Center of a Polygon
Finding the center of a circle with any right-angled object
Indexpage - math word definition - Math Open Reference
Central-angle
Indexpage - math word definition - Math Open Reference
Central Angle of a Polygon
Central Angle Theorem
Central angle of a circle
Centroid
Triangle centroid definition
Median of a triangle - math word definition
Triangle Centers Overview
Centroid coordinates of a triangle given the vertex coordinates (Coordinate Geometry)
How to construct the centroid of a triangle with compass and straightedge or ruler
Indexpage - math word definition - Math Open Reference
Euler line
Chain-rule
Calculus - Chain Rule
Chord
Parts of a circle - Pictorial index
Intersecting Chord Theorem
Chord - Math word definition
Circle
Circle and ellipse drawing algorithm
Annulus - Math word definition
Arc - Math word definition
Segment of a Circle
General form of Equation of a Circle
Tangent to a circle definition
Basic Equation of a Circle
How to construct a circle through 3 points with compass and straightedge or ruler
Conic section - circle
Concentric - Math word definition
Area enclosed by a circle
Thales theorem
Secant of a circle definition
Chord - Math word definition
Central angle of a circle
Derivation of the formula for the area of a circle
Intersecting Chord Theorem
Circle - Math word definition
Parametric Equation of a Circle
Circumcircle
Circumference (perimeter) of a circle definition
Square inscribed in a circle
Inscribed angle of a circle
Incircle
Derivation of the formula for the circumference of a circle
Area of an annulus
How to construct a tangent to a circle at a point
How to construct (draw) tangents to a circle through an external point
Area of a circle segment
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
Angle inscribed in a semicircle
Radius of a circle - math word definition
Intersecting Secant Theorem
Area of a circle segment
Semicircle - math word definition
Diameter - math word definition
Area of a sector of a circle
Sector definition
How to construct (draw) the two external tangents to two given circles
Finding the center of a circle with any right-angled object
Finding the center of a circle or arc with compass and straightedge or ruler
How to construct (draw) the two internal tangents to two given circles
Circumcenter
Indexpage - math word definition - Math Open Reference
Euler line
How to construct circumcenter of a triangle with compass and straightedge or ruler
Triangle Centers Overview
Circumcircle of a Triangle
Triangle Circumcenter definition
Circumcircle
Indexpage - math word definition - Math Open Reference
How to construct a circle through 3 points with compass and straightedge or ruler
Circumcircle
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
Circumcircle of a Regular Polygon
Circumcircle of a Triangle
Radius of a Regular Polygon
Circumference
Derivation of the formula for the circumference of a circle
Parts of a circle - Pictorial index
Perimeter of an Ellipse
Circumference (perimeter) of a circle definition
Circumradius
Indexpage - math word definition - Math Open Reference
Radius of a Regular Polygon
Circumcircle of a Triangle
Circumscribed
Circumcircle of a Triangle
How to construct a circle through 3 points with compass and straightedge or ruler
Circumscribed rectangle, bounding box. (Coordinate Geometry)
Circumcircle
Indexpage - math word definition - Math Open Reference
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
Circumcircle of a Regular Polygon
Classification
Classification of triangles
Indexpage - math word definition - Math Open Reference
Classify
Indexpage - math word definition - Math Open Reference
Classification of triangles
Collinear
Collinear - Math word definition
Common-core
Common Core alignment
Comparison
Calculus - Comparison Test
Compass
Constructions Introduction. Drawing shapes with compasses and straightedge
Indexpage - math word definition - Math Open Reference
List of construction worksheets
Indexpage - math word definition - Math Open Reference
Complement
Indexpage - math word definition - Math Open Reference
Complementary
Indexpage - math word definition - Math Open Reference
Complementary angle using compass and straightedge or ruler
Complementary Angles definition
Complex-number
The letter i - math word definition
The letter j - math word definition
Complex numbers - animated definition
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Composite-number
Composite number - math word definition
Indexpage - math word definition - Math Open Reference
Prime number - math word definition
Composition
Calculus - Chain Rule
Concave
Indexpage - math word definition - Math Open Reference
Concave Polygon Definition
Concentric
Concentric - Math word definition
Concurrent-lines
Points of concurrency
Triangle Circumcenter definition
Indexpage - math word definition - Math Open Reference
Triangle incenter, description and properties
Triangle centroid definition
Orthocenter of a triangle - math word definition
Cone
Volume of a right cone
Comparison of a cone and pyramid
Conic section - circle
Slant height of a right cone
Conic section - ellipse
Surface area of a right cone
Cone - Math word definition
Derivation of the formula for the area of a cone
Oblique versus right cone - Math Open Reference
Congruent
Congruent Triangles
Reflected Congruent Triangles
Congruent triangles with a common side
Indexpage - math word definition - Math Open Reference
Congruent Polygon Tests- Math Open Reference
Congruent Polygons- Math Open Reference
Congruent Lines Definition
ASA Congruent Triangles
SAS Congruent Triangles
SSA doesn't work
AAA Doesn't work
SSS Congruent Triangles
AAS Congruent Triangles
Congruent Angles
HL Congruent Triangles
Rotated Congruent Triangles
Conic-section
Conic section - ellipse
Conic section - circle
Conical
Indexpage - math word definition - Math Open Reference
Cone - Math word definition
Comparison of a cone and pyramid
Construction
Finding the center of a circle with any right-angled object
How to construct circumcenter of a triangle with compass and straightedge or ruler
How to construct (draw) tangents to a circle through an external point
Printable instructions for drawing a 30-60-90 triangle with compass and straightedge or ruler
Finding the center of a circle or arc with compass and straightedge or ruler
Printable instructions for drawing parallel through a point with compass and straightedge or ruler
Printable instructions for finding the orthocenter of a triangle with compass and straightedge or ruler
Complementary angle using compass and straightedge or ruler
Printable instructions for constructing a hexagon inscribed in a given circle.
How to copy an angle with compass and straightedge or ruler
How to construct a tangent to a circle at a point
Printable instructions for finding the midsegment of a triangle with compass and straightedge or ruler
Printable instructions for constructing an equilateral triangle inscribed in a given circle.
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
Printable instructions for drawing the incircle of a triangle with compass and straightedge or ruler
How to construct the centroid of a triangle with compass and straightedge or ruler
Printable step-by-step instructions for constructing a segment which is the sum of given segments with compass and straightedge or ruler
Printable step-by-step instructions for adding two angles with compass and straightedge or ruler
How to construct a 90 degree angle with compass and straightedge or ruler
How to construct a 60 degree angle with compass and straightedge or ruler
How to construct (draw) a right triangle with a given leg and hypotenuse (HL)
How to construct a 30 degree angle with compass and straightedge or ruler
Printable strp-by-step instructions for drawing a triangle given three sides with compass and straightedge or ruler
How to construct (draw) a 45 degree angle with compass and straightedge or ruler
Constructing 75, 105, 120, 135, 150 degree angles and more
How to construct (draw) a right triangle with a given one angle and hypotenuse (HA)
How to bisect a segment with compass and straightedge or ruler
Constructing a circle through 3 given points
How to construct (draw) the two external tangents to two given circles
How to construct (draw) the two internal tangents to two given circles
How to construct a triangle given two angles and a non-included side
How to construct a triangle given two angles and the included side
How to bisect an angle with compass and straightedge or ruler
Supplementary angle using compass and straightedge or ruler
List of construction worksheets
Printable instructions for measuring an angle using a protractor
How to construct (draw) the incircle of a triangle with compass and straightedge or ruler
How to construct (draw) the medians of a triangle
How to construct midsegment of a triangle with compass and straightedge or ruler
How to construct (draw) the orthocenter of a triangle- Math Open Reference
How to construct (draw) a parallel through a point with compass and straightedge or ruler (rhombus method)
How to construct a parallel through a point with compass and straightedge or ruler
How to construct the incenter of a triangle with compass and straightedge
Construct an isosceles triangle with given leg and apex angle with compass and straightedge or ruler
How to construct (draw) an isosceles triangle given base and altitude with compass and straightedge or ruler
Printable step-by-step instructions for drawing an isosceles triangle with compass and straightedge or ruler - II
How to construct a square inscribed in a circle with compass and straightedge or ruler
Constructing a regular pentagon inscribed in a circle
How to construct a regular hexagon inscribed in a circle with compass and straightedge or ruler
Printable step-by-step instructions for drawing an isosceles triangle with compass and straightedge or ruler
How to construct an equilateral triangle inscribed in a given circle with compass and straightedge or ruler
How to construct an isosceles triangle given base and one side
How to construct a parallel through a point (translated triangle method) with compass and straightedge or ruler
How to construct a regular hexagon given one side with compass and straightedge or ruler
Difference of two line segments using compass and straightedge or ruler
Constructions Introduction. Drawing shapes with compasses and straightedge
Dividing a line segment into N equal parts with compass and straightedge or ruler
Printable instructions for constructing a pentagon inscribed in a given circle.
Difference of two angles using compass and straightedge or ruler
Copying a triangle with compass and straightedge or ruler
How to construct (draw) a square
Indexpage - math word definition - Math Open Reference
How to construct (draw) an ellipse
Printable instructions for constructing a square inscribed in a circle with compass and straightedge or ruler
How to construct (draw) an equilateral triangle with compass and straightedge or ruler
Printable instructions for drawing the medians of a triangle with compass and straightedge or ruler
How to construct (draw) a perpendicular at the end of a ray with compass and straightedge or ruler
How to construct (draw) a perpendicular from a line through a point
How to construct (draw) a perpendicular at a point on a line
Finding the foci an ellipse
Copying a line segment with compass and straightedge or ruler
How to construct (draw) a right triangle with a given one angle and one leg (LA)
Printable step-by-step instructions for constructing a triangle given two angles and non-included side (AAS) with compass and straightedge or ruler
Printable instructions for finding the foci of an ellipse with compass and straightedge or ruler
Printable instructions for drawing an ellipse with string and pins
Printable instructions for drawing an angle with a protractor
Printable instructions for dividing a line segment into equal parts with compass and straightedge or ruler
Printable instructions for constructing one of the two internal tangents to two given circles.
Printable instructions for finding the center of a circle with any right angled object
Printable instructions for finding the center of a circle with compass and straightedge or ruler
Printable instructions for drawing parallel through a point (rhombus method)
Printable instructions for constructing a right triangle with given leg and hypotenuse with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given angle and hypotenuse with compass and straightedge or ruler
Printable instructions for drawing parallel through a point with compass and straightedge or ruler
Printable instructions for drawing an equilateral triangle with compass and straightedge or ruler
How to construct (draw) one of the three altitudes of a triangle
Printable instructions for finding the circumcenter of a triangle with compass and straightedge or ruler
Printable step-by-step instructions for constructing a segment which is the difference of two given segments with compass and straightedge or ruler
Printable instructions for constructing tangents to two given circles.
Printable instructions for copying a triangle with compass and straightedge or ruler
Printable instructions for constructing the supplementary angle to a given angle with compass and straightedge or ruler
Printable instructions for drawing tangents to a circle from a point with compass and straightedge or ruler
Printable step-by-step instructions for constructing the difference of two angles with compass and straightedge or ruler
Printable instructions for drawing a tangent at a point on a circle with compass and straightedge or ruler
Printable instructions for copying a line segment with compass and straightedge or ruler
Printable instructions for constructing a square of a given side length with compass and straightedge or ruler
Printable instructions for drawing the circumcircle of a triangle with compass and straightedge or ruler
Printable instructions for drawing a perpendicular at the end of a ray with compass and straightedge or ruler
Printable instructions for drawing a perpendicular to a line through a point with compass and straightedge or ruler
Printable instructions for drawing a perpendicular at a point on a line with compass and straightedge or ruler
Printable instructions for copying an angle with compass and straightedge or ruler
Printable instructions for constructing the complementary angle to a given angle with compass and straightedge or ruler
Printable instructions for constructing a hexagon given one side.
Printable step-by-step instructions for drawing a triangle given two angles and included side with compass and straightedge or ruler
Printable instructions for drawing a 45 degree angle with compass and straightedge or ruler
Printable instructions for drawing a 30 degree angle with compass and straightedge or ruler
Copying a line segment with compass and straightedge or ruler
Printable instructions for drawing a 60 degree angle with compass and straightedge or ruler
How to construct a circle through 3 points with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given angle and one leg (LA) with compass and straightedge or ruler
Printable instructions for finding the centroid of a triangle with compass and straightedge or ruler
Printable instructions for drawing a 90 degree angle with compass and straightedge or ruler
How to construct a triangle given two sides and the included angle
How to add two angles with compass and straightedge or ruler
How to construct (draw) one of the three altitudes of a triangle
Printable instructions for finding the altitude of an acute triangle with compass and straightedge or ruler
Printable instructions for drawing a triangle given two sides and included angle with compass and straightedge or ruler
Printable instructions for finding the altitude of an obtuse triangle with compass and straightedge or ruler
How to construct (draw) a right triangle with two given leg lengths (LL)
Printable instructions for constructing a right triangle with given leg lengths with compass and straightedge or ruler
Sum of line segments using compass and straightedge or ruler
How to construct (draw) a triangle given three sides
How to construct a 30-60-90 triangle with compass and straightedge or ruler
Printable instructions for bisecting a line with compass and straightedge or ruler
Printable instructions for constructing an isosceles triangle given a side and apex angle
Printable instructions for finding the incenter of a triangle with compass and straightedge or ruler
Printable instructions for bisecting an angle with compass and straightedge or ruler
Continuity
Calculus - Formal approach to continuity
Calculus - Informal continuity
Continuous
Calculus - making a function continuous and differentiable
Convergence
Calculus - Ratio Test
Convex
Indexpage - math word definition - Math Open Reference
Convex Polygon Definition
Coordinates
Area of any polygon (Coordinate Geometry)
The Coordinate Plane
Slope (m) of a line (Coordinate Geometry)
Line Segment definition (Coordinate Geometry)
Equation of a line - point - slope form. (Coordinate Geometry)
Teaching Notes: Limitations of the applets in the coordinate geometry section
Indexpage - math word definition - Math Open Reference
Intercept (b) of a line (Coordinate Geometry)
Equation of a line - slope and intercept form. (Coordinate Geometry)
Midpoint Theorem (Coordinate Geometry)
Line definition (Coordinate Geometry)
Introduction to Lines in Coordinate Geometry
Introduction to Coordinate Geometry
Ray definition (Coordinate Geometry)
Origin - math word definition
Coordinates of a point
Coordinates of a regular polygon
Distance between points
Print blank graph paper
Coplanar
Introduction to plane geometry
Coplanar - Math word definition
Corresponding
Indexpage - math word definition - Math Open Reference
Corresponding Angles definition
Cos
The trigonometry arccos() function - inverse cosine - math word definition
Trigonometry Overview
COS - Math word definition
Cosine - math word definition
Graph of the Cosine function - Trigonometry
Cosecant
Calculus - trigonometric Functions
Introduction to the 6 trigonometry functions
Indexpage - math word definition - Math Open Reference
Cosine
Cosine - math word definition
Introduction to the 6 trigonometry functions
The Law of Cosines
Proof of the Law of Cosines
The trigonometry arccos() function - inverse cosine - math word definition
Calculus - trigonometric Functions
Solving Triangles
Graph of the Cosine function - Trigonometry
SOHCAHTOA - math word definition - Trigonometry
Cot
COT - Math word definition
Indexpage - math word definition - Math Open Reference
Cotangent
Calculus - trigonometric Functions
Introduction to the 6 trigonometry functions
Indexpage - math word definition - Math Open Reference
Coterminal
Coterminal - math word definition
Counting-number
Natural number - math word definition
Indexpage - math word definition - Math Open Reference
Counting numbers (Whole numbers or natural numbers)
Whole number - math word definition
Cardinal numbers (Whole numbers or natural numbers)
Cpctc
Indexpage - math word definition - Math Open Reference
Csc
CSC - Math word definition
Indexpage - math word definition - Math Open Reference
Cube
Volume of a cube
Surface area of a cube
Cube - math word definition
Cubic
Cubic curve and graph display
Indexpage - math word definition - Math Open Reference
Curve
Calculus - Curve Analysis - Global Extrema
Calculus - Curve analysis - special cases
Calculus - Basic curve analysis
Cyclic
Diagonals of an inscribed quadrilateral
Inscribed (cyclic) quadrilateral
Area of an inscribed quadrilateral
Interior angles of an inscribed quadrilateral
Cylinder
Derivation of the surface area of a cylinder
Surface area of a cylinder
Cylinder definition and properties
Cylinder as the locus of a line
Oblique cylinder
Relation of a cylinder to a prism
Volume of a cylinder
Volume of a cylinder segment
D
TOP
Decagon
Decagon - math word definition
Decay
Calculus - Growth, Decay, and the Logistic Equation
Decimal-notation
Indexpage - math word definition - Math Open Reference
Definite
Calculus - Properties of Definite Integrals
Degree
Degrees as a unit of angle measure
Radian - math word definition
Angle calculator for angles expressed in Degrees, Minutes, Seconds
Indexpage - math word definition - Math Open Reference
Angle definition and properties (Trigonometry)
Denominator
Indexpage - math word definition - Math Open Reference
Derivative
Calculus - Hyperbolic Functions
Calculus - Linear Approximations
Calculus - trigonometric Functions
Calculus - Basic curve analysis
Calculus - Exponential Functions
Calculus - Parametric Derivatives
Calculus - Related Rates - a melting snowball
Calculus - Product and Quotient of Functions
Calculus - Derivative Function
Calculus - Derivative at a Point
Calculus - Table view of the Derivative
Calculus - Constant multiples of functions
Calculus - Curve Analysis - Global Extrema
Calculus - derivative combinations: sum and difference
Calculus - Curve analysis - special cases
Calculus - Polar Derivatives
Calculus - Invertible Functions
Diagonal
Rectangle and its properties. (Coordinate Geometry)
Diagonals of a rectangle
Polygon diagonals
Square and its properties. (Coordinate Geometry)
Diagonals of a square
Rhombus diagonals bisect each other at right angles
Indexpage - math word definition - Math Open Reference
Parallelogram and its properties. (Coordinate Geometry)
Parallelogram diagonals bisect each other
Diagonals
Diagonals of an inscribed quadrilateral
Diameter
Semicircle - math word definition
Diameter - math word definition
Parts of a circle - Pictorial index
Thales theorem
Difference
Calculus - derivative combinations: sum and difference
Differentiability
Calculus - Differentiability
Differentiable
Calculus - making a function continuous and differentiable
Calculus - Twice differentiable
Differential-equation
Calculus - Slope Fields
Calculus - Separation of Variables
Calculus - Introduction to Differential Equations
Calculus - Euler's Method
Dilate
Dilation - math word definition
Directrix
Cylinder definition and properties
Relation of a cylinder to a prism
Parabola definition (focus / directrix form)
Indexpage - math word definition - Math Open Reference
Distance
Distance from a point to a line using trigonometry
Indexpage - math word definition - Math Open Reference
Distance from a point to a line using two line equations
Distance from a point to a vertical or horizontal line
Distance between points
Calculus - Approximating Distance Traveled
Distance from a point to a line using a formula
Distance from a point to a line
Dodecagon
Dodecagon - math word definition
Domain
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
E
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Eccentricity
Eccentricity an ellipse
Edge
Definition of the math word edge
Ellipse
Parametric Equation of an Ellipse
Ellipse - math word definition- Math Open Reference
Semi-major / semi-minor axis of an ellipse
How to construct (draw) an ellipse
Finding the foci an ellipse
General Equation of an Ellipse
Elliptical mirrors
Perimeter of an Ellipse
Tangent to an ellipse
Foci of an ellipse
Conic section - ellipse
Area enclosed by an ellipse
Circle and ellipse drawing algorithm
Major / minor axis of an ellipse
Eccentricity an ellipse
Equation
Basic Equation of a Circle
Parametric Equation of an Ellipse
Equation of a line - point - slope form. (Coordinate Geometry)
Equation of a line - slope and intercept form. (Coordinate Geometry)
Parametric Equation of a Circle
General Equation of an Ellipse
General form of Equation of a Circle
Indexpage - math word definition - Math Open Reference
Equiangular
Regular Polygon - math word definition
Equiangular - math word definition
Equidistant
Equidistant - math word definition
Equilateral
How to construct an equilateral triangle inscribed in a given circle with compass and straightedge or ruler
Equilateral - math word definition
Area of an equilateral triangle
How to construct (draw) an equilateral triangle with compass and straightedge or ruler
Euclid
Euclid - math word definition
Constructions Introduction. Drawing shapes with compasses and straightedge
Euler
Euler the mathematician - Math word definition
Calculus - Euler's Method
Euler line
Evt
Calculus - Extreme Value Theorem
Exponent
Zero-exponent Rule
Exponential
Calculus - Exponential Functions
Exterior-angle
Triangle exterior angle theorem
Exterior Angles of a Transversal definition
Exterior Angles - math word definition
Alternate Exterior Angles definition
Triangle exterior angles definition
Indexpage - math word definition - Math Open Reference
Interior / exterior angles of a polygon
Extrema
Calculus - Curve Analysis - Global Extrema
Extreme
Calculus - Extreme Value Theorem
F
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Face
Definition of the math word face
Factor
Indexpage - math word definition - Math Open Reference
Prime number - math word definition
Foci
Indexpage - math word definition - Math Open Reference
Foci of an ellipse
Ellipse - math word definition- Math Open Reference
Focus
Ellipse - math word definition- Math Open Reference
Elliptical mirrors
Indexpage - math word definition - Math Open Reference
Finding the foci an ellipse
Foci of an ellipse
Parabola definition (focus / directrix form)
Fraction
Indexpage - math word definition - Math Open Reference
Reciprocal - math word definition
Indexpage - math word definition - Math Open Reference
Full-angle
Full angle - Math word definition
Full Angle - An angle with a measure of 360 deg
Function
Cosine - math word definition
Calculus - Functions defined using integrals
The trigonometry arcsin() function - inverse sine - math word definition
Graph of the Sine function - Trigonometry
The trigonometry arctan() function - inverse tangent - math word definition
Secant function (sec) - Trigonometry
The inverse trigonometry functions
Calculus - Derivative Function
Indexpage - math word definition - Math Open Reference
The tangent function in right triangles - Trigonometry
Graph of the Tangent function - Trigonometry
Calculus - Invertible Functions
SOHCAHTOA - math word definition - Trigonometry
The sine function - math word definition
The trigonometry arccos() function - inverse cosine - math word definition
Introduction to the 6 trigonometry functions
Graph of the Cosine function - Trigonometry
Trigonometry function with large and negative angles
Linear function graphical explorer (ax+b)
Linear function graphical explorer (mx+b)
Graph of a function
Graphical Function Explorer grapher (GFE)
Indexpage - math word definition - Math Open Reference
Functions as used in programming languages
Fundamental
Calculus - Fundamental Theorem of Calculus
G
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Generator
Indexpage - math word definition - Math Open Reference
Generatrix
Relation of a cylinder to a prism
Cylinder definition and properties
Indexpage - math word definition - Math Open Reference
Global
Calculus - Curve Analysis - Global Extrema
Golden-rectangle
The Golden Rectangle - math word definition
Graph
Linear function graphical explorer (mx+b)
Cubic curve and graph display
Linear function graphical explorer (ax+b)
Graph of the Cosine function - Trigonometry
Graph of the Sine function - Trigonometry
How to customize the General Function Explorer (GFE)
Graphical Function Explorer grapher (GFE)
When the graph tool seems to produce incorrect results
Graph of a function
Quadratic curve and graph display (vertex form)
Quadratic curve and graph display (standard form)- Math Open Reference
Print blank graph paper
Sine waves- math word definition - Trigonometry
Graph of the Tangent function - Trigonometry
Growth
Calculus - Growth, Decay, and the Logistic Equation
H
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Heptagon
Heptagon - math word definition
Heron
Area of a triangle given three sides - Heron's Formula
Biography of Heron
Hexagon
Hexagon - math word definition
How to construct a regular hexagon given one side with compass and straightedge or ruler
How to construct a regular hexagon inscribed in a circle with compass and straightedge or ruler
Horizontal
Horizontal - math word definition
Horizontal line definition. (Coordinate Geometry)
Hyperbolic
Calculus - Hyperbolic Functions
Hypotenuse
Triangle definition and properties
Hypotenuse - math word definition
HL Congruent Triangles
I
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I
The letter i - math word definition
The letter j - math word definition
Complex numbers - animated definition
Indexpage - math word definition - Math Open Reference
Icosahedron
Icosahedron - A regular polyhedron with 20 faces - One of the platonic solids
Identity
Indexpage - math word definition - Math Open Reference
Trigonometry identities
Imaginary-number
Complex numbers - animated definition
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
The letter j - math word definition
The letter i - math word definition
Indexpage - math word definition - Math Open Reference
Improper
Calculus - Improper Integrals
Incenter
How to construct (draw) the incircle of a triangle with compass and straightedge or ruler
Triangle incircle definition
Incenter coordinates of a triangle given the vertex coordinates (Coordinate Geometry)
How to construct the incenter of a triangle with compass and straightedge
Triangle incenter, description and properties
Indexpage - math word definition - Math Open Reference
Incenter of a regular polygon
Triangle Centers Overview
Incircle
Incircle
Incircle of a Polygon
Indexpage - math word definition - Math Open Reference
Incenter of a regular polygon
How to construct the incenter of a triangle with compass and straightedge
Triangle incircle definition
How to construct (draw) the incircle of a triangle with compass and straightedge or ruler
Included
Included side definition
Included - math word definition
Included angle definition
Inequality
Triangle inequality theorem- Math Open Reference
Triangle inequality theorem converse
Initial
Initial side - math word definition - Trigonometry
Inradius
Triangle incircle definition
Indexpage - math word definition - Math Open Reference
Incircle of a Polygon
Inscribed
How to construct an equilateral triangle inscribed in a given circle with compass and straightedge or ruler
Inscribed (cyclic) quadrilateral
Angle inscribed in a semicircle
Arc Peripheral Angle
Incircle
Inscribed angle of a circle
Parallelogram inscribed in a quadrilateral
Constructing a regular pentagon inscribed in a circle
Inscribed - math word definition
Triangle incircle definition
Square inscribed in a circle
How to construct a square inscribed in a circle with compass and straightedge or ruler
How to construct a regular hexagon inscribed in a circle with compass and straightedge or ruler
Instantaneous
Calculus - Instantaneous Velocity
Integer
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Integral
Calculus - Improper Integrals
Calculus - Properties of Definite Integrals
Calculus - Riemann Sums
Calculus - Polar Area
Calculus - Functions defined using integrals
Calculus - Integral Test
Integration
Calculus - Integration By Substitution
Intercept
Equation of a line - slope and intercept form. (Coordinate Geometry)
Intercepted arc
Intercept (b) of a line (Coordinate Geometry)
Introduction to Lines in Coordinate Geometry
Interior
Interior / exterior angles of a polygon
Interior - math word definition
Interior angles of an inscribed quadrilateral
Alternate Interior Angles definition
Polygon Interior Angles
Triangle interior angles definition
Interior of an angle definition
Interior Angles of a transversal definition
Intermediate
Calculus - Intermediate Value Theorem
Intersect
Intersecting Secant Angles Theorem
Intersecting straight lines. (Coordinate Geometry)
Intersecting Secant Theorem
Intersecting Chord Theorem
Intersection - math word definition
Interval-notation
Indexpage - math word definition - Math Open Reference
Inverse
The inverse trigonometry functions
Calculus - Invertible Functions
Irrational-number
Irrational number - math word definition
Indexpage - math word definition - Math Open Reference
Rational Number - math word definition
Irregular
Area of an Irregular Polygon
Irregular polygon - math word definition
Isosceles
How to construct an isosceles triangle given base and one side
Isosceles triangle - math word definition
How to construct (draw) an isosceles triangle given base and altitude with compass and straightedge or ruler
Ivt
Calculus - Intermediate Value Theorem
J
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J
The letter i - math word definition
Complex numbers - animated definition
The letter j - math word definition
Indexpage - math word definition - Math Open Reference
K
TOP
Kite
Kite - math word definition
Perimeter of a kite
Area of a Kite
L
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Lagrange
Calculus - Lagrange Remainder
Law
The Law of Sines
Solving Triangles
Proof of the Law of Sines
Proof of the Law of Cosines
The Law of Cosines
Leg
Angle - Math word definition
Lhopital
Calculus - L'Hopital's Rule
Limit
Calculus - Limits: Informal view
Calculus - Approximating Distance Traveled Using a Graph
Calculus - limits at infinity
Calculus - Tabular view of limits
Calculus - Limit Comparison Test
Calculus - Instantaneous Velocity
Calculus - 1 and 2-sided limits and no limits
Limits
Calculus - Formal view of limits
Line
Line Segment Definition
Intersection - math word definition
Distance from a point to a line using a formula
Perpendicular bisector definition
Parallel lines - math word definition
Line - math word definition
Distance from a point to a line using two line equations
Distance from a point to a line
Horizontal - math word definition
Distance from a point to a vertical or horizontal line
Reflection - a mirror image of a line segment
Congruent Lines Definition
Midpoint Theorem (Coordinate Geometry)
Line segment bisector definition
Slope (m) of a line (Coordinate Geometry)
Introduction to Lines in Coordinate Geometry
Equation of a line - point - slope form. (Coordinate Geometry)
Ray - math word definition
Vertical - math word definition
Tangent to a circle definition
Vertical line definition. (Coordinate Geometry)
Distance from a point to a line using trigonometry
Parallel lines. (Coordinate Geometry)
Slope (m) of a line (Coordinate Geometry)
Transversal - math word definition
Horizontal line definition. (Coordinate Geometry)
Equation of a line - slope and intercept form. (Coordinate Geometry)
Line Segment definition (Coordinate Geometry)
Perpendicular lines. (Coordinate Geometry)
Intercept (b) of a line (Coordinate Geometry)
Intersecting straight lines. (Coordinate Geometry)
Perpendicular - math word definition
Euler line
Line definition (Coordinate Geometry)
Linear
Linear Pair - math word definition
Calculus - Linear Approximations
Linear function graphical explorer (mx+b)
Linear function graphical explorer (ax+b)
Calculus - Motion along a line
Locus
Locus - math word definition
Cylinder as the locus of a line
Logistic
Calculus - Growth, Decay, and the Logistic Equation
M
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Major
Major / minor axis of an ellipse
Major and Minor Arcs
Semi-major / semi-minor axis of an ellipse
Mean
Calculus - Mean Value Theorem
Measure
Angle measure of an arc
Median
Trapezoid and its properties. (Coordinate Geometry)
Trapezoid median (midline, midsegment) definition
Median of a triangle - math word definition
How to construct (draw) the medians of a triangle
Midline
Trapezoid median (midline, midsegment) definition
Midpoint
Calculus - Midpoint and Trapezoidal Riemann Sums
Midpoint - math word definition
How to bisect a segment with compass and straightedge or ruler
Midpoint Theorem (Coordinate Geometry)
Midsegment
Triangle midsegment - math word definition
How to construct midsegment of a triangle with compass and straightedge or ruler
Trapezoid median (midline, midsegment) definition
Minor
Major / minor axis of an ellipse
Major and Minor Arcs
Semi-major / semi-minor axis of an ellipse
Minus
Positive number definition - math word definition
Negative number definition - math word definition
Minute
Angle calculator for angles expressed in Degrees, Minutes, Seconds
Mirror
Elliptical mirrors
Motion
Calculus - Equations of Motion
Calculus - Motion on a Plane
Calculus - Motion along a line
Multiples
Calculus - Constant multiples of functions
N
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Natural-number
Cardinal numbers (Whole numbers or natural numbers)
Counting numbers (Whole numbers or natural numbers)
Whole number - math word definition
Natural number - math word definition
Indexpage - math word definition - Math Open Reference
Negative-number
Negative number definition - math word definition
Uses of negative numbers
Positive number definition - math word definition
Indexpage - math word definition - Math Open Reference
Nonagon
Nonagon - math word definition
Normal
Perpendicular - math word definition
Normal - math word definition
Normal-form
Normal form - math word definition
Number
Whole number - math word definition
Scalar - math word definition
Indexpage - math word definition - Math Open Reference
Percent
Prime number - math word definition
Indexpage - math word definition - Math Open Reference
Number line
Percent mistakes
Positive number definition - math word definition
Normal form - math word definition
Calculating percentages
Indexpage - math word definition - Math Open Reference
Negative number definition - math word definition
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Composite number - math word definition
Complex numbers - animated definition
Natural number - math word definition
Number-line
Positive number definition - math word definition
Number line
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Negative number definition - math word definition
Numerator
Indexpage - math word definition - Math Open Reference
O
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Oblique
Indexpage - math word definition - Math Open Reference
Prism definition
Cylinder definition and properties
Oblique versus right pyramid - Math Open Reference
Oblique versus right cone - Math Open Reference
Oblique cylinder
Oblong
Rectangle - math word definition
Obtuse
Obtuse - math word definition
Obtuse Angle definition
Obtuse triangle definition
Octagon
Octagon - math word definition
Opposite
Opposite Rays Definition
Vertical Angles definition
Ordinal
Indexpage - math word definition - Math Open Reference
Ordinate
Coordinates of a point
Indexpage - math word definition - Math Open Reference
Origin
The Coordinate Plane
Origin - math word definition
Introduction to Coordinate Geometry
Orthocenter
Triangle Centers Overview
How to construct (draw) the orthocenter of a triangle- Math Open Reference
Euler line
Orthocenter of a triangle - math word definition
Indexpage - math word definition - Math Open Reference
Orthogonal
Right Angle - math word definition
Indexpage - math word definition - Math Open Reference
Outlier
Outlier - math word definition
P
TOP
Parabola
Parabola - math word definition
Quadratic curve and graph display (standard form)- Math Open Reference
Parabola definition (conic section) Math Open Reference
Parabola definition (quadratic equation ) Math Open Reference
Derivation of the equation of a parabola
Parabola definition (focus / directrix form)
Parallel
How to construct a parallel through a point (translated triangle method) with compass and straightedge or ruler
Parallel lines - math word definition
How to construct a parallel through a point with compass and straightedge or ruler
Transversal - math word definition
Parallel lines. (Coordinate Geometry)
How to construct (draw) a parallel through a point with compass and straightedge or ruler (rhombus method)
Parallelogram
Perimeter of a parallelogram
Parallelogram diagonals bisect each other
Parallelogram - math word definition
Parallelogram inscribed in a quadrilateral
Derivation of the formula for the area of a parallelogram
Parallelogram and its properties. (Coordinate Geometry)
Area of a parallelogram. Definition and formula
Interior angles of a parallelogram
Parameter
Parametric Equation of an Ellipse
Parametric Equation of a Circle
Parametric
Parametric
Calculus - Parametric Derivatives
Parametric Equation of a Circle
Parametric Equation of an Ellipse
Pentagon
Pentagon - math word definition
Constructing a regular pentagon inscribed in a circle
Percent
Percent
Percent mistakes
Calculating percentages
Perimeter
Perimeter of a triangle
Indexpage - math word definition - Math Open Reference
Perimeter of a parallelogram
Perimeter of a rhombus
Perimeter of a square
Perimeter of a trapezoid
Trapezoid area and perimeter. (Coordinate Geometry)
Area and Perimeter of a Square. (Coordinate Geometry)
Area and perimeter of a rectangle. (Coordinate Geometry)
Circumference (perimeter) of a circle definition
Perimeter of a polygon
Perimeter of a kite
Perimeter of an Ellipse
Perimeter of a rectangle
Relationship of area and perimeter of a triangle
Peripheral
Arc Peripheral Angle
Perpendicular
Perpendicular lines. (Coordinate Geometry)
Perpendicular - math word definition
How to construct (draw) a perpendicular at the end of a ray with compass and straightedge or ruler
Transversal - math word definition
How to construct (draw) a perpendicular at a point on a line
Perpendicular bisector definition
How to construct (draw) a perpendicular from a line through a point
Pi
Area of an annulus
Derivation of the formula for the circumference of a circle
Area enclosed by a circle
Pi - math word definition
Area enclosed by an ellipse
Plane
Calculus - Motion on a Plane
Coplanar - Math word definition
Plane - math word definition
The Coordinate Plane
Introduction to Coordinate Geometry
Introduction to plane geometry
Platonic-solid
Icosahedron - A regular polyhedron with 20 faces - One of the platonic solids
Plus
Negative number definition - math word definition
Positive number definition - math word definition
Point
Distance between points
Distance from a point to a line using a formula
Distance from a point to a vertical or horizontal line
Distance from a point to a line using trigonometry
Equation of a line - point - slope form. (Coordinate Geometry)
Calculus - Derivative at a Point
Distance from a point to a line
Coordinates of a point
Reflection - a mirror image of a point
Points of concurrency
Point - math word definition
Equidistant - math word definition
Collinear - Math word definition
Locus - math word definition
Distance from a point to a line using two line equations
Introduction to Coordinate Geometry
Polar
Calculus - Polar Derivatives
Calculus - Polar Area
Polygon
Radius of a Regular Polygon
Congruent Polygon Tests- Math Open Reference
Area of an Irregular Polygon
Irregular polygon - math word definition
Similar polygons and triangles defined
Perimeter of a polygon
Derivation of the formula for the area of a regular polygon
Tetragon - math word definition
Triangles of a Polygon
Undecagon - math word definition
Sides of a Polygon
Apothem of a polygon
Area of a polygon calculator
Regular polygon area formula
Regular Polygon - math word definition
Polygon Interior Angles
Circumcircle of a Regular Polygon
Central Angle of a Polygon
Dodecagon - math word definition
Concave Polygon Definition
Pentagon - math word definition
Center of a Polygon
Octagon - math word definition
Polygon - math word definition
Interior / exterior angles of a polygon
Nonagon - math word definition
Hexagon - math word definition
Convex Polygon Definition
Area of a polygon algorithm
Decagon - math word definition
Heptagon - math word definition
Polygon diagonals
Incenter of a regular polygon
Coordinates of a regular polygon
Exterior Angles - math word definition
Area of any polygon (Coordinate Geometry)
Congruent Polygons- Math Open Reference
Incircle of a Polygon
Polyhedron
Pyramid - Math word definition
Definition of the math word face
Icosahedron - A regular polyhedron with 20 faces - One of the platonic solids
Oblique versus right pyramid - Math Open Reference
Definition of the math word edge
Polynomial
Root (of a polynomial) - math word definition
Position
Calculus - Equations of Motion
Positive-number
Negative number definition - math word definition
Indexpage - math word definition - Math Open Reference
Positive number definition - math word definition
Power
Calculus - Power Functions
Calculus - Power Series
Prime-number
Composite number - math word definition
Prime number - math word definition
Indexpage - math word definition - Math Open Reference
Printable
Printable instructions for constructing an equilateral triangle inscribed in a given circle.
Printable instructions for drawing an angle with a protractor
Printable instructions for constructing a hexagon inscribed in a given circle.
Printable instructions for constructing a pentagon inscribed in a given circle.
Printable instructions for drawing an ellipse with string and pins
Printable instructions for dividing a line segment into equal parts with compass and straightedge or ruler
Printable instructions for drawing the incircle of a triangle with compass and straightedge or ruler
Printable instructions for constructing a hexagon given one side.
Printable step-by-step instructions for constructing the difference of two angles with compass and straightedge or ruler
Printable instructions for drawing an equilateral triangle with compass and straightedge or ruler
Printable instructions for finding the foci of an ellipse with compass and straightedge or ruler
Printable instructions for finding the incenter of a triangle with compass and straightedge or ruler
Printable step-by-step instructions for constructing a segment which is the difference of two given segments with compass and straightedge or ruler
Printable instructions for drawing tangents to a circle from a point with compass and straightedge or ruler
Printable instructions for constructing one of the two internal tangents to two given circles.
Printable step-by-step instructions for constructing a triangle given two angles and non-included side (AAS) with compass and straightedge or ruler
Printable instructions for constructing tangents to two given circles.
Printable instructions for drawing a tangent at a point on a circle with compass and straightedge or ruler
Printable instructions for constructing the supplementary angle to a given angle with compass and straightedge or ruler
Printable step-by-step instructions for drawing a triangle given two angles and included side with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given angle and hypotenuse with compass and straightedge or ruler
Printable instructions for drawing a triangle given two sides and included angle with compass and straightedge or ruler
Printable strp-by-step instructions for drawing a triangle given three sides with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given leg lengths with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given angle and one leg (LA) with compass and straightedge or ruler
Printable instructions for constructing a right triangle with given leg and hypotenuse with compass and straightedge or ruler
Printable instructions for constructing a square of a given side length with compass and straightedge or ruler
Printable instructions for drawing a perpendicular at a point on a line with compass and straightedge or ruler
Printable instructions for measuring an angle using a protractor
Printable instructions for drawing the medians of a triangle with compass and straightedge or ruler
Printable instructions for constructing an isosceles triangle given a side and apex angle
Printable step-by-step instructions for drawing an isosceles triangle with compass and straightedge or ruler - II
Printable step-by-step instructions for drawing an isosceles triangle with compass and straightedge or ruler
Printable instructions for finding the midsegment of a triangle with compass and straightedge or ruler
Printable instructions for finding the orthocenter of a triangle with compass and straightedge or ruler
Printable instructions for drawing a perpendicular at the end of a ray with compass and straightedge or ruler
Printable instructions for drawing a perpendicular to a line through a point with compass and straightedge or ruler
Printable instructions for drawing parallel through a point with compass and straightedge or ruler
Printable instructions for drawing parallel through a point (rhombus method)
Printable instructions for drawing parallel through a point with compass and straightedge or ruler
Printable instructions for constructing a square inscribed in a circle with compass and straightedge or ruler
Printable instructions for finding the center of a circle with compass and straightedge or ruler
Printable instructions for bisecting an angle with compass and straightedge or ruler
Printable instructions for drawing a 90 degree angle with compass and straightedge or ruler
Constructing a circle through 3 given points
Printable instructions for drawing a 30-60-90 triangle with compass and straightedge or ruler
Printable instructions for bisecting a line with compass and straightedge or ruler
Printable step-by-step instructions for adding two angles with compass and straightedge or ruler
Printable step-by-step instructions for constructing a segment which is the sum of given segments with compass and straightedge or ruler
Printable instructions for finding the altitude of an acute triangle with compass and straightedge or ruler
Printable instructions for drawing a 30 degree angle with compass and straightedge or ruler
Printable instructions for drawing a 45 degree angle with compass and straightedge or ruler
Printable instructions for drawing a 60 degree angle with compass and straightedge or ruler
Printable instructions for finding the altitude of an obtuse triangle with compass and straightedge or ruler
Printable instructions for finding the centroid of a triangle with compass and straightedge or ruler
Printable instructions for copying an angle with compass and straightedge or ruler
Printable instructions for drawing the circumcircle of a triangle with compass and straightedge or ruler
Printable instructions for finding the circumcenter of a triangle with compass and straightedge or ruler
Printable instructions for copying a line segment with compass and straightedge or ruler
Printable instructions for copying a triangle with compass and straightedge or ruler
Printable instructions for finding the center of a circle with any right angled object
Printable instructions for constructing the complementary angle to a given angle with compass and straightedge or ruler
Prism
Relation of a cylinder to a prism
Prism definition
Volume of a triangular prism
Surface area of a prism
Problems
The 'Many Triangles' math problem #1
The 'Many Triangles' math problem #2
Many triangles answer
Trigonometry problems - Slope angle
The 'Ball Box' math problem
Many triangles II answer
Trigonometry problems - Slant distance
The 'Three Satellites' triangle math problem
Product
Calculus - Product and Quotient of Functions
Proof
Proof of the Law of Sines
Proof of the Law of Cosines
Pythagorean Theorem Proof
Protractor
How to use a protractor to draw an angle
How to use a protractor to measure angles
Protractor - math word definition
Ptolemy
Diagonals of an inscribed quadrilateral
Ptolemy
Pyramid
Surface area of a pyramid
Oblique versus right pyramid - Math Open Reference
Comparison of a cone and pyramid
Pyramid - Math word definition
Volume of a pyramid
Pythagoras
3:4:5 triangle definition
30-60-90 triangle definition
45-45-90 triangle definition
Biography of Pythagoras - math word definition
Distance between points
Solving Triangles using Trigonometry
Pythagorean Theorem Proof
Pythagorean triples triangle definition
Solving Triangles
Pythagorean Theorem - math word definition
Trigonometry introduction - math word definition
Pythagorean
Pythagorean Theorem - math word definition
Pythagorean triples triangle definition
Pythagorean Theorem Proof
Q
TOP
QED
Q.E.D. - math word definition
Quadrangle
Rectangle - math word definition
Square - math word definition
Quadrilateral (also: tetragon, quadrangle) - math word definition
Quadrant
Indexpage - math word definition - Math Open Reference
The Coordinate Plane
Quadrantal
Quadrantal angle - math word definition - Trigonometry
Quadratic
Quadratic curve and graph display (vertex form)
Quadratic curve and graph display (standard form)- Math Open Reference
Quadrilateral
Parallelogram - math word definition
Rectangle - math word definition
Diagonals of an inscribed quadrilateral
Parallelogram inscribed in a quadrilateral
Rhombus - math word definition
Area of an inscribed quadrilateral
Trapezoid - math word definition
Quadrilateral (also: tetragon, quadrangle) - math word definition
Interior angles of an inscribed quadrilateral
Kite - math word definition
Trapezium - math word definition
Square - math word definition
Inscribed (cyclic) quadrilateral
Area of a Kite
Quiz
Triangle Quiz 1
Angle Quiz 1
Quotient
Indexpage - math word definition - Math Open Reference
Calculus - Product and Quotient of Functions
R
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Radians
Degrees as a unit of angle measure
Angle definition and properties (Trigonometry)
Radian - math word definition
Radical
Root (of a number) - math word definition
Radical sign or symbol - math word definition
Radical - math word definition
Radical-sign
Radical sign or symbol - math word definition
Radicand
Radical - math word definition
Radical sign or symbol - math word definition
Root (of a number) - math word definition
Radicand - math word definition
Radius
Derivation of the arc radius formula
Radius of an Arc or Arch - Math Open Reference
Semicircle - math word definition
Circumcircle of a Regular Polygon
Circumference (perimeter) of a circle definition
Parts of a circle - Pictorial index
Radius of a Regular Polygon
Radius of a circle - math word definition
Range
Indexpage - math word definition - Math Open Reference
Range of a function
Rate
Calculus - Related Rates - a melting snowball
Ratio
Calculus - Ratio Test
Ratio - math word definition
Rational-number
Indexpage - math word definition - Math Open Reference
Rational Number - math word definition
Irrational number - math word definition
Ray
Ray - math word definition
Opposite Rays Definition
Ray definition (Coordinate Geometry)
Real-number
Indexpage - math word definition - Math Open Reference
Complex numbers - animated definition
Indexpage - math word definition - Math Open Reference
Indexpage - math word definition - Math Open Reference
Reciprocal
Reciprocal - math word definition
Rectangle
Rectangle - math word definition
Area of a rectangle. Definition and formula
Rectangles and International paper sizes
The Golden Rectangle - math word definition
Perimeter of a rectangle
Circumscribed rectangle, bounding box. (Coordinate Geometry)
Area and perimeter of a rectangle. (Coordinate Geometry)
Rectangle and its properties. (Coordinate Geometry)
Diagonals of a rectangle
Reference-angle
Reference angle
Reflect
Reflection - a mirror image of a point
Reflection - math word definition
Reflection - a mirror image of a line segment
Reflected Congruent Triangles
Reflex-angle
Reflex Angle definition
Regular
Regular polygon area formula
Regular Polygon - math word definition
Remainder
Prime number - math word definition
Revolution
Calculus - Volumes of Revolution
Rhombus
Rhombus diagonals bisect each other at right angles
Perimeter of a rhombus
Rhombus area formula
Rhombus - math word definition
How to construct (draw) a parallel through a point with compass and straightedge or ruler (rhombus method)
Riemann
Calculus - Riemann Sums
Calculus - Midpoint and Trapezoidal Riemann Sums
Riemann-sum
Calculus - Midpoint and Trapezoidal Riemann Sums
Calculus - Riemann Sums
Right
Oblique versus right cone - Math Open Reference
Pythagorean Theorem - math word definition
Right triangle definition
Oblique versus right pyramid - Math Open Reference
Right Angle - math word definition
Right-angle
Perpendicular - math word definition
How to construct a 90 degree angle with compass and straightedge or ruler
Root
Radical sign or symbol - math word definition
Radicand - math word definition
Root (of a polynomial) - math word definition
Radical - math word definition
Root (of a number) - math word definition
Root - math word definition
Rotate
Rotation - math word definition
Rotated Congruent Triangles
Rounding
Indexpage - math word definition - Math Open Reference
Ruler
Indexpage - math word definition - Math Open Reference
List of construction worksheets
Constructions Introduction. Drawing shapes with compasses and straightedge
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Sagitta
Sagitta definition, the height, width, radius of an arc
Radius of an Arc or Arch - Math Open Reference
Parts of a circle - Pictorial index
SAS
Area of a triangle (Side-angle-side method)
SAS Congruent Triangles
Scalar
Indexpage - math word definition - Math Open Reference
Scalar - math word definition
Scalene
Scalene triangle - math word definition
Scientific-notation
Indexpage - math word definition - Math Open Reference
Normal form - math word definition
Sec
SEC - Math word definition
Secant function (sec) - Trigonometry
Secant
Intersecting Secant Theorem
Intersecting Secant Angles Theorem
Introduction to the 6 trigonometry functions
Calculus - trigonometric Functions
Secant function (sec) - Trigonometry
Chord - Math word definition
Secant of a circle definition
Indexpage - math word definition - Math Open Reference
Parts of a circle - Pictorial index
Second
Calculus - Second Fundamental Theorem of Calculus
Angle calculator for angles expressed in Degrees, Minutes, Seconds
Second-derivative
Calculus - Second Derivative
Calculus - Table view of second derivative
Sector
Area of a sector of a circle
Parts of a circle - Pictorial index
Sector definition
Segment
Copying a line segment with compass and straightedge or ruler
Area of a circle segment
Difference of two line segments using compass and straightedge or ruler
Dividing a line segment into N equal parts with compass and straightedge or ruler
Midpoint Theorem (Coordinate Geometry)
Line Segment Definition
Radius of an Arc or Arch - Math Open Reference
Parts of a circle - Pictorial index
Volume of a cylinder segment
Line Segment definition (Coordinate Geometry)
Segment of a Circle
Area of a circle segment
Copying a line segment with compass and straightedge or ruler
Sum of line segments using compass and straightedge or ruler
Semi
Semi-major / semi-minor axis of an ellipse
Semicircle
Semicircle - math word definition
Angle inscribed in a semicircle
Separation
Calculus - Separation of Variables
Sequence
Calculus - Sequences
Series
Calculus - Power Series
Calculus - Alternating Series Test
Calculus - Series
Side
Relationship of side lengths and angles of a triangle
Adjacent sides definition
SSS Triangle similarity test
Sides of a Polygon
SSS Congruent Triangles
Included side definition
SAS Triangle similarity test
Sign
Positive number definition - math word definition
Negative number definition - math word definition
Similar
Triangle similarity, ratios of area
AAA Triangle similarity test
Similar polygons and triangles defined
SSS Triangle similarity test
Similar Triangles
SAS Triangle similarity test
Triangle similarity, ratios of parts
Sin
SIN - Math word definition
The trigonometry arcsin() function - inverse sine - math word definition
Graph of the Sine function - Trigonometry
The sine function - math word definition
Trigonometry Overview
Sine waves- math word definition - Trigonometry
Sine
SOHCAHTOA - math word definition - Trigonometry
The trigonometry arcsin() function - inverse sine - math word definition
The Law of Sines
Introduction to the 6 trigonometry functions
Calculus - trigonometric Functions
Solving Triangles
Graph of the Sine function - Trigonometry
The sine function - math word definition
Proof of the Law of Sines
Slant-height
Slant height of a right cone
Slope
Equation of a line - point - slope form. (Coordinate Geometry)
Equation of a line - slope and intercept form. (Coordinate Geometry)
Calculus - Antiderivatives from Slope
Slope (m) of a line (Coordinate Geometry)
Introduction to Lines in Coordinate Geometry
Calculus - Slope Fields
SOHCAHTOA
SOHCAHTOA - math word definition - Trigonometry
Solving
Solving Triangles using Trigonometry
Trigonometry introduction - math word definition
Trigonometry problems - Slope angle
Trigonometry problems - Slant distance
Speed
Calculus - Equations of Motion
Sphere
Surface area of a sphere
Volume of a sphere
Square
Square - math word definition
Square and its properties. (Coordinate Geometry)
How to construct a square inscribed in a circle with compass and straightedge or ruler
Area and Perimeter of a Square. (Coordinate Geometry)
Perimeter of a square
How to construct (draw) a square
Diagonals of a square
Area of a square. Definition and formula
Square inscribed in a circle
Standard
Standard position of an angle definition - Trigonometry
General form of Equation of a Circle
Statistics
Outlier - math word definition
Straight
Straight Angle definition
Straightedge
List of construction worksheets
Indexpage - math word definition - Math Open Reference
Constructions Introduction. Drawing shapes with compasses and straightedge
Substitution
Calculus - Integration By Substitution
Subtended
Subtended angle definition
Sum
Calculus - derivative combinations: sum and difference
Supplementary
Supplementary Angles definition
Supplementary angle using compass and straightedge or ruler
Interior angles of an inscribed quadrilateral
Surd
Indexpage - math word definition - Math Open Reference
Surface-area
Surface area of a right cone
Derivation of the surface area of a cylinder
Surface area of a cylinder
Surface area of 3D solid shapes with formula and links to other pages
Surface area of a prism
Surface area of a cube
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Tan
TAN - Math word definition
The tangent function in right triangles - Trigonometry
Trigonometry Overview
The trigonometry arctan() function - inverse tangent - math word definition
Graph of the Tangent function - Trigonometry
Tangent
Tangent to a circle definition
Indexpage - math word definition - Math Open Reference
Calculus - trigonometric Functions
How to construct (draw) tangents to a circle through an external point
How to construct (draw) the two internal tangents to two given circles
How to construct (draw) the two external tangents to two given circles
The trigonometry arctan() function - inverse tangent - math word definition
Tangent to an ellipse
Introduction to the 6 trigonometry functions
Graph of the Tangent function - Trigonometry
How to construct a tangent to a circle at a point
The tangent function in right triangles - Trigonometry
SOHCAHTOA - math word definition - Trigonometry
Parts of a circle - Pictorial index
Taylor-series
Calculus - Taylor series and Polynomials
Teaching-notes
Teaching Notes: Limitations of the applets in the coordinate geometry section
Terminal
Terminal side definition - Trigonometry
Coterminal - math word definition
Test
Calculus - Alternating Series Test
Calculus - Limit Comparison Test
Calculus - Ratio Test
Calculus - Comparison Test
Calculus - Integral Test
Tetragon
Tetragon - math word definition
Quadrilateral (also: tetragon, quadrangle) - math word definition
Thales
Biography of Thales - math word definition
Thales theorem
Theorem
Calculus - Second Fundamental Theorem of Calculus
Central Angle Theorem
Triangle inequality theorem converse
Thales theorem
Biography of Thales - math word definition
Triangle inequality theorem- Math Open Reference
Biography of Pythagoras - math word definition
Pythagorean Theorem - math word definition
Triangle exterior angle theorem
Calculus - Fundamental Theorem of Calculus
Time
24 hour time calculator
Tools
Cubic curve and graph display
Linear function graphical explorer (ax+b)
Linear function graphical explorer (mx+b)
Quadratic curve and graph display (standard form)- Math Open Reference
Quadratic curve and graph display (vertex form)
Transform
Reflection - a mirror image of a point
Calculus - Transformations of Functions
Translation - math word definition
Rotation - math word definition
Reflection - math word definition
Reflection - a mirror image of a line segment
Dilation - math word definition
Translate
How to construct a parallel through a point (translated triangle method) with compass and straightedge or ruler
Translation - math word definition
Transversal
Transversal - math word definition
Exterior Angles of a Transversal definition
Interior Angles of a transversal definition
Trapezium
Trapezium - math word definition
Trapezoid
Derivation of the formula for the area of a trapezoid
Calculus - Midpoint and Trapezoidal Riemann Sums
Trapezoid area and perimeter. (Coordinate Geometry)
Area of a trapezoid. Definition and formula
Trapezoid - math word definition
Perimeter of a trapezoid
Trapezoid median (midline, midsegment) definition
Trapezoid and its properties. (Coordinate Geometry)
Triangle
Base - Math word definition
Acute triangle definition
Equilateral - math word definition
Triangle incenter, description and properties
Trigonometry introduction - math word definition
Median of a triangle - math word definition
Triangle exterior angle theorem
Isosceles triangle - math word definition
The Law of Cosines
Triangle midsegment - math word definition
Obtuse triangle definition
Solving Triangles using Trigonometry
Equiangular - math word definition
Perimeter of a triangle
Orthocenter of a triangle - math word definition
Triangle inequality theorem converse
Area of a triangle given three sides - Heron's Formula
Relationship of side lengths and angles of a triangle
Solving Triangles
Hypotenuse - math word definition
The Law of Sines
Triangle interior angles definition
Triangle incircle definition
Euler line
Triangle inequality theorem- Math Open Reference
Triangle exterior angles definition
3:4:5 triangle definition
How to construct (draw) one of the three altitudes of a triangle
How to construct (draw) a triangle given three sides
How to construct (draw) an equilateral triangle with compass and straightedge or ruler
Area of a triangle using the box method (Coordinate Geometry)
How to construct (draw) the orthocenter of a triangle- Math Open Reference
Centroid coordinates of a triangle given the vertex coordinates (Coordinate Geometry)
Copying a triangle with compass and straightedge or ruler
How to construct a triangle given two sides and the included angle
How to construct (draw) one of the three altitudes of a triangle
How to construct an isosceles triangle given base and one side
Volume of a triangular prism
How to construct (draw) a right triangle with a given leg and hypotenuse (HL)
How to construct a 30-60-90 triangle with compass and straightedge or ruler
How to construct the incenter of a triangle with compass and straightedge
How to construct (draw) a right triangle with two given leg lengths (LL)
How to construct (draw) a right triangle with a given one angle and one leg (LA)
Area of a triangle (Coordinate Geometry)
Right triangle definition
Triangle similarity, ratios of area
How to construct (draw) an isosceles triangle given base and altitude with compass and straightedge or ruler
Triangle similarity, ratios of parts
Similar Triangles
SSS Triangle similarity test
SAS Triangle similarity test
Construct an isosceles triangle with given leg and apex angle with compass and straightedge or ruler
Scalene triangle - math word definition
How to construct (draw) the medians of a triangle
How to construct the centroid of a triangle with compass and straightedge or ruler
Incenter coordinates of a triangle given the vertex coordinates (Coordinate Geometry)
How to construct circumcenter of a triangle with compass and straightedge or ruler
AAA Triangle similarity test
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
How to construct midsegment of a triangle with compass and straightedge or ruler
Points of concurrency
Rotated Congruent Triangles
Triangle centroid definition
How to construct a triangle given two angles and the included side
HL Congruent Triangles
How to construct (draw) a right triangle with a given one angle and hypotenuse (HA)
Triangle Centers Overview
SSA doesn't work
SAS Congruent Triangles
Triangle Circumcenter definition
ASA Congruent Triangles
Triangle Quiz 1
Classification of triangles
Area of an equilateral triangle
Circumcircle of a Triangle
How to construct a triangle given two angles and a non-included side
AAS Congruent Triangles
AAA Doesn't work
Area of a triangle (Side-angle-side method)
Pythagorean triples triangle definition
How to construct (draw) the incircle of a triangle with compass and straightedge or ruler
Triangle definition and properties
How to construct an equilateral triangle inscribed in a given circle with compass and straightedge or ruler
Congruent Triangles
Reflected Congruent Triangles
Congruent triangles with a common side
30-60-90 triangle definition
45-45-90 triangle definition
Area of a triangle (conventional method)
Pythagorean Theorem - math word definition
SSS Congruent Triangles
Triangles of a Polygon
Pythagorean Theorem Proof
Altitude of a triangle
Relationship of area and perimeter of a triangle
Trigonometry
Trigonometry problems - Slope angle
Trigonometry Overview
The tangent function in right triangles - Trigonometry
Terminal side definition - Trigonometry
Reference angle
Trigonometry problems - Slant distance
The trigonometry arcsin() function - inverse sine - math word definition
Secant function (sec) - Trigonometry
Solving Triangles using Trigonometry
Standard position of an angle definition - Trigonometry
Quadrantal angle - math word definition - Trigonometry
Calculus - Table view of the Derivative
Calculus - trigonometric Functions
Calculus - Derivative at a Point
Graph of the Cosine function - Trigonometry
SOHCAHTOA - math word definition - Trigonometry
Introduction to the 6 trigonometry functions
Trigonometry function with large and negative angles
The trigonometry arctan() function - inverse tangent - math word definition
Angle definition and properties (Trigonometry)
Cosine - math word definition
Graph of the Sine function - Trigonometry
Coterminal - math word definition
The sine function - math word definition
Graph of the Tangent function - Trigonometry
Initial side - math word definition - Trigonometry
The trigonometry arccos() function - inverse cosine - math word definition
The inverse trigonometry functions
Trigonometry introduction - math word definition
Trigonometry identities
Triples
Pythagorean triples triangle definition
U
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Undecagon
Undecagon - math word definition
Unit
Indexpage - math word definition - Math Open Reference
Unit-circle
Indexpage - math word definition - Math Open Reference
Parametric Equation of a Circle
V
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Velocity
Calculus - Approximating Distance Traveled Using a Graph
Calculus - Approximating Distance Traveled
Acceleration - math word definition
Calculus - Instantaneous Velocity
Calculus -Average velocity and speed
Vertex
Triangle definition and properties
Angle - Math word definition
Vertex - math word definition
Quadratic curve and graph display (vertex form)
Vertical
Vertical - math word definition
Vertical Angles definition
Vertical line definition. (Coordinate Geometry)
Vertices
Vertex - math word definition
Volume
Volume of a cube
Calculus - Maximizing volume
Volume of a cylinder segment
Volume of a right cone
Volume of a sphere
Volume of a cylinder
Oblique cylinder
Volume of a triangular prism
Calculus - Volumes of Revolution
Volume of a pyramid
Calculus - Volumes of Known Cross Sections
Indexpage - math word definition - Math Open Reference
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Whole-number
Natural number - math word definition
Counting numbers (Whole numbers or natural numbers)
Indexpage - math word definition - Math Open Reference
Whole number - math word definition
Cardinal numbers (Whole numbers or natural numbers)
Worksheet
List of construction worksheets
X
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X-axis
Y-axis definition
X-axis definition
Y
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Y-axis
Y-axis definition
X-axis definition
Z
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Zero-exponent-rule
Zero-exponent Rule
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