SUBJECT INDEX
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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