Question

parallelogram rstu is rotated 180° clockwise about vertex r. how many pairs of parallel sides does the rotated figure have?
o 1
o 2
o 3
o 4

Explanation:

Step1: Recall property of parallelogram

A parallelogram has 2 pairs of parallel sides.

Step2: Recall property of rotation

A 180 - degree rotation is a rigid - motion. Rigid - motions preserve the shape and size of the figure, including parallelism.

Answer:

B. 2