Aparallelogram rotates about its center. at what angle of rotation will the image of the parallelogram coincide with its preimage?
a. 30°
b. 90°
c. 180°
d. 270°
e. 315°

If the parallelogram is rotated about its center, then the angle of rotation would have to be
c. 180°
for the image to coincide with its pre-image.

for a parallelogram, the pre-image will coincide with the rotated image at an angle of rotation of
n (180)
where n is any whole number

Use photo math it it’s so good