SUBJECT INDEX

t

Tan

The tangent function in right triangles - Trigonometry
Trigonometry Overview
Graph of the Tangent function - Trigonometry
The trigonometry arctan() function - inverse tangent - math word definition
TAN - Math word definition
Tangent

How to construct (draw) tangents to a circle through an external point
Tangent to an ellipse
Tangent to a circle definition
Tangent
Tangent to a circle definition
SOHCAHTOA - math word definition - Trigonometry
Parts of a circle - Pictorial index
How to construct a tangent to a circle at a point
Introduction to the 6 trigonometry functions
Calculus - trigonometric Functions
How to construct (draw) the two internal tangents to two given circles
Graph of the Tangent function - Trigonometry
The trigonometry arctan() function - inverse tangent - math word definition
The tangent function in right triangles - Trigonometry
How to construct (draw) the two external tangents to two given circles
Taylor series

Calculus - Taylor series and Polynomials
Teaching notes

Teaching Notes: Limitations of the applets in the coordinate geometry section
Terminal

Coterminal - math word definition
Terminal side definition - Trigonometry
Terms

Terms of Use
Test

Calculus - Limit Comparison Test
Calculus - Comparison Test
Calculus - Integral Test
Calculus - Ratio Test
Calculus - Alternating Series Test
Tetragon

Quadrilateral (also: tetragon, quadrangle) - math word definition
Tetragon - math word definition
Tetrahedron

Platonic solid
Thales

Thales theorem
Biography of Thales - math word definition
Theorem

Triangle inequality theorem converse
Calculus - Fundamental Theorem of Calculus
Biography of Pythagoras - math word definition
Midpoint Theorem (Coordinate Geometry)
Pythagorean Theorem - math word definition
Central Angle Theorem
Triangle inequality theorem- Math Open Reference
Calculus - Second Fundamental Theorem of Calculus
Triangle exterior angle theorem
Biography of Thales - math word definition
Thales theorem
Time

24 hour time calculator
24 hour time calculator
24 hour difference between two times calculator
Tools

Quadratic curve and graph display (vertex form)
Quadratic curve and graph display (standard form)- Math Open Reference
Transform

Reflection - a mirror image of a point
Reflection - math word definition
Calculus - Transformations of Functions
Translation - math word definition
Rotation - math word definition
Dilation - math word definition
Reflection - a mirror image of a line segment
Translate

How to construct a parallel through a point (translated triangle method) with compass and straightedge or ruler
Translation - math word definition
Transversal

Interior Angles of a transversal definition
Exterior Angles of a Transversal definition
Transversal - math word definition
Trapezoid

Calculus - Midpoint and Trapezoidal Riemann Sums
Trapezoid area and perimeter. (Coordinate Geometry)
Trapezoid - math word definition
Trapezoid and its properties. (Coordinate Geometry)
Area of a trapezoid. Definition, formula and calculator
Derivation of the formula for the area of a trapezoid
Trapezoid median (midline, midsegment) definition
Perimeter of a trapezoid
Triangle

Triangle definition and properties
How to construct midsegment of a triangle with compass and straightedge or ruler
AAS Congruent Triangles
Points of concurrency
AAA Doesn't work
3:4:5 triangle definition
ASA Congruent Triangles
HL Congruent Triangles
How to construct (draw) the orthocenter of a triangle- Math Open Reference
SSA doesn't work
SSS Congruent Triangles
Congruent Triangles
Congruent triangles with a common side
Reflected Congruent Triangles
30-60-90 triangle definition
Relationship of area and perimeter of a triangle
45-45-90 triangle definition
Triangle inequality theorem- Math Open Reference
Solving Triangles using Trigonometry
Trigonometry introduction - math word definition
Base - Math word definition
Solving Triangles
Relationship of side lengths and angles of a triangle
Perimeter of a triangle
Orthocenter of a triangle - math word definition
Triangle midsegment - math word definition
Median of a triangle - math word definition
Triangle interior angles definition
Triangle inequality theorem converse
Triangle incircle definition
Altitude of a triangle
Triangle incenter, description and properties
Triangle exterior angle theorem
Triangle exterior angles definition
Area of an equilateral triangle
Classification of triangles
Circumcircle of a Triangle
Triangle Circumcenter definition
Triangle centroid definition
Triangle Centers Overview
Area of a triangle (Side-angle-side method) with calculator
How to construct a 30-60-90 triangle with compass and straightedge or ruler
Area of a triangle (conventional method) with calculator
Rotated Congruent Triangles
SAS Congruent Triangles
Acute triangle definition
How to construct (draw) a triangle given three sides (SSS)
Euler line
Equilateral - math word definition
Equiangular - math word definition
How to construct (draw) an equilateral triangle with compass and straightedge or ruler
How to construct the incenter of a triangle with compass and straightedge
Area of a triangle using the box method (Coordinate Geometry)
Area of a triangle (Coordinate Geometry)
How to construct (draw) the incircle of a triangle with compass and straightedge or ruler
Triangle similarity, ratios of parts
Incenter coordinates of a triangle with calculator (Coordinate Geometry)
Coordinates of a triangle centroid with calculator (Coordinate Geometry)
How to construct a triangle given two sides and the included angle (SAS)
Hypotenuse - math word definition
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)
How to construct (draw) a right triangle with a given leg and hypotenuse (HL)
How to construct (draw) a right triangle with a given one angle and hypotenuse (HA)
Triangle given two angles and the included side (ASA)
How to construct a triangle given two angles and a non-included side (AAS)
How to construct an isosceles triangle given base and one side
How to construct (draw) an isosceles triangle given base and altitude with compass and straightedge or ruler
Construct an isosceles triangle with given leg and apex angle with compass and straightedge or ruler
How to construct (draw) the medians of a triangle
Pythagorean Theorem Proof
Area of a triangle given three sides - Heron's Formula with calculator
How to construct an equilateral triangle inscribed in a given circle with compass and straightedge or ruler
Isosceles triangle - math word definition
How to construct the centroid of a triangle with compass and straightedge or ruler
SAS Triangle similarity test
AAA Triangle similarity test
Scalene triangle - math word definition
Right triangle definition
Triangle Quiz 1
How to construct (draw) one of the three altitudes of a triangle
Similar Triangles
How to construct (draw) one of the three altitudes of an obtuse triangle
Triangle similarity, ratios of area
Pythagorean triples triangle definition
Pythagorean Theorem - math word definition
SSS Triangle similarity test
How to construct circumcenter of a triangle with compass and straightedge or ruler
Volume of a triangular prism
Triangles of a Polygon
How to construct a circle through the 3 vertices of a triangle with compass and straightedge or ruler
Copying a triangle with compass and straightedge or ruler
Obtuse triangle definition
The Law of Sines
The Law of Cosines
Trigonometry

Trigonometry problems - Slant distance
Trigonometry problems - Slope angle
Trigonometry definition
The inverse trigonometry functions
Quadrantal angle - math word definition - Trigonometry
Secant function (sec) - Trigonometry
The trigonometry arcsin() function - inverse sine - math word definition
Solving Triangles using Trigonometry
Standard position of an angle definition - Trigonometry
Trigonometry Overview
The tangent function in right triangles - Trigonometry
The trigonometry arccos() function - inverse cosine - math word definition
SOHCAHTOA - math word definition - Trigonometry
Terminal side definition - Trigonometry
Trigonometry introduction - math word definition
Trigonometry function with large and negative angles
Initial side - math word definition - Trigonometry
Reference angle
Coterminal - math word definition
Cosine - math word definition
Distance from a point to a line using trigonometry
Calculus - trigonometric Functions
Calculus - Table view of the Derivative
Angle definition and properties (Trigonometry)
Trigonometry identities
Introduction to the 6 trigonometry functions
Calculus - Derivative at a Point
Graph of the Cosine function - Trigonometry
Graph of the Sine function - Trigonometry
Graph of the Tangent function - Trigonometry
The trigonometry arctan() function - inverse tangent - math word definition
The sine function - math word definition
Triples

Pythagorean triples triangle definition
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