Related Terms: Tangent, Cosine, Sine, Hypotenuse, Angle bisector, Right triangle, Obtuse triangle, Subtend, Rectangle, Trigonometric functions, Regular polygon, Dihedral angle, Rhomboid, Rhombus, Decagon, Perpendicular bisector, Square, Right angle, Alternate interior angles, Acute triangle, Hexagonal, Skew, Hexagon, Leg, Obtuse angle, Adjacent angles, Isosceles trapezoid, Angular, Quadrilateral, Corresponding angles, Pentagon, Interior angle, Rectangular, Equilateral triangle, Pythagorean theorem, Cyclic quadrilateral, Heptagon, Central angle, Altitude of a triangle, Inscribed angle, Scalene triangle, Straight angle, Isosceles, Isosceles triangle, Regular hexagon, Kite , Apothem, Orthogonal, Parallelogram, Tetragonal