Question

how to do congruency in parllelogram
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Answer 1

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Opposite sides of parallelograms are congruent. Opposite angles of parallelograms are congruent. Adjacent angles of parallelograms are supplementary. Diagonals bisect each other.

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Answer 2

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Opposite sides of parallelograms are congruent. Opposite angles of parallelograms are congruent. Adjacent angles of parallelograms are supplementary. Diagonals bisect each other.

I hope it's helps you ☺️.