Proof That The Opposite Sides of a Parallelogram Are Congruent

A parallelogram is a quadrilateral whose opposite sides are parallel. In the figure below, is a parallelogram. is parallel to and is parallel to .   In this post, aside from being parallel, we will also prove that the opposite sides of a parallelogram are congruent.
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The Opposite Sides of a Parallelogram are Congruent

A parallelogram is a quadrilateral whose opposite sides are parallel. In this post, we show that asides from being parallel, they are also congruent. In the figure below, is a parallelogram; is parallel to and is parallel to .   To prove that the opposite sides of are congruent, we have to show that and […]
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