Lesson 2 Properties of Parallelograms

A diagonal divides the parallelogram into two congruent triangles

Equilateral quadrialteral

Diagonals are perpendicular.

Equiangular quadrilateral

Both pairs of opposite sides are parallel

Diagonals bisect its angles

Both pairs of opposite angles are congruent

Diagonals bisect each other

Only one pair of opposite sides congruent

Consecutive angles are supplementary

Diagonals are congruent.

Both pairs of opposite sides are congruent

Only one pair of opposite sides parallel