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Help picture below problem 9

Help Picture Below Problem 9 class=

Sagot :

Answer:

sometimes...

Step-by-step explanation:

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A parallelogram is sometimes a rectangle.

A) sometimes

Explanation:

because the vertices join the adjacent sides at 90° angles and it has two sets of parallel sides and two pairs of opposite sides that are congruent. (a rectangle has all of the properties of a parallelogram.)