Theorems for module 14-15 Math test

Rectangle

4right angles/ diagonals are congruent

Angle bisector

A bisector forms 2 equal angles

Side angle relation ship

Larger angle is opposite side of the larger angle

Quadrilateral= parallelogram

Opposite sides are congruent/opposite angles are congruent/ diagonals bisect each other

Triangle inequality theorem

The sum of two sides must be greater than the third

Rhombus

Equal side length/ diagonals are perpendicular/ a diagonal bisects a pair of opposite angles

Converse of angle bisector

If a line makes two sides equidistant from each other, than the line is a bisector

Polygon angles

(N-2)180

Incenter

Angle bisect of a triangle intersect at a point that is equidistant from the sides

Triangular sum theorem

Sum of angles =180