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Mathematics, 16.11.2020 07:50 shashayantie6556

Which of the following are necessary when proving that the opposite sides of a parallelogram are congruent? Check all that apply. A. Opposite sides are parallel.

B. Corresponding parts of congruent triangles are congruent.

C. Corresponding parts of similar triangles are similar.

D. Opposite sides are perpendicular.

Which of the following are necessary when proving that the opposite sides of a parallelogram are co

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