classify each quadrilateral in the photos below. Then name the parallel sides.

A patch of land is outlined in the shape of a four-sided polygon, labeled A B C D. It has two pairs of opposite parallel sides. Angles A and C are congruent. Angles B and D are congruent.
A patch of land is outlined in the shape of a four-sided polygon, labeled P Q R S. It has one pair of opposite parallel sides and one pair of congruent sides. Angles P and Q are congruent. Angles R and S are congruent.

The first polygon is a parallelogram, with parallel sides AB and CD.

The second polygon is a rhombus, with parallel sides PR and QS.