Lesson 2 Properties of Parallelograms

Both pairs of opposite sides are parallel

Equiangular quadrilateral

Diagonals are congruent.

Only one pair of opposite sides parallel

Equilateral quadrialteral

Both pairs of opposite sides are congruent

Diagonals bisect its angles

Only one pair of opposite sides congruent

Consecutive angles are supplementary

Both pairs of opposite angles are congruent

Diagonals bisect each other

A diagonal divides the parallelogram into two congruent triangles

Diagonals are perpendicular.