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OpenStudy (meganhall27):
Besides the definition, what other way can you use the sides of a quadrilateral to prove that that it is a parallelogram?
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OpenStudy (shansha1):
If a quadrilateral is a parallelogram, the diagonals bisect each other. If a quadrilateral is a parallelogram, the diagonals form two congruent triangles. When trying to PROVE a parallelogram, the definition and theorems are stated as ... A parallelogram is a quadrilateral with both pairs of opposite sides parallel.
likeabossssssss (likeabossssssss):
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