Index T...

tan	Properties of a Right Triangle
tangential quadrilateral	Tangential Quadrilateral
tetragon	Quadrilateral - General Definitions
tetrahedron	Tetrahedron
	Regular Polyhedra
Thales' theorem	Thales' Theorem
theorem of Cavalieri	General Rules for 3D Solids
translation	Coordinate Transform
	3D Translation with Homogeneous Coordinates
trapezoid	Trapezoid
triangle	Pythagorean Theorem
	Properties of a Right Triangle
	Mollweide's Formulas
	Median and Centroid of a Triangle
	Law of Cosines, Sines and Tangents
	Isosceles Triangle
	Half Angle Relations in a Triangle
	Generalized Pythagorean Theorem
	Excircle of a Triangle
	Equilateral Triangle
	Construction of a Triangle
	Circumcircle of a Triangle
	Area of a Triangle
	Properties of Arbitrary Triangles
	Relations between Angles and Sides in Triangles
	Relations between Angles in Triangles
	Incircle and Angle Bisectors of a Triangle
	Altitudes of a Triangle
	Triangle - General Definitions
	Thales' Theorem
	Congruent and Similar Triangles
	Congruence Transformation
triangle inequality	Relations between Angles and Sides in Triangles