Question

Which concept is used to prove that the opposite sides of a parallelogram are congruent?

congruent rectangles
similar rectangles
congruent triangles
similar triangles
1 Intro
Done

Answer 1

Answer: congruent

Explanation:

Answer 2

congruent triangles

Explanation:

You can eliminate useless answers based on their wording. "Similar" anything cannot be used to prove congruence. "Rectangles" will not help you prove congruence of parallelogram sides. The only reasonable choice is ...

congruent triangles

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Typically, a diagonal is drawn through the figure, and the two triangles created are shown to be congruent, often by ASA. Then, by CPCTC, sides of the parallelogram are shown to be congruent.