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Question

Select the correct answer from each drop-down menu.

Consider parallelogram  with center E.

Since rotating parallelogram  90, 135, 180, 270 about its center E maps side  onto side  and side  onto side DC,DA, AB, opposite sides of parallelograms are not congruent or congruent.

Answer 1

Rotating ABCD 180 degrees will map side CD onto side AB and side BC onto side DA. Opposite sides of a parallelogram are congruent.