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Only diagram of Parallelogram related : |
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Answer» In Euclidean GEOMETRY, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of PARALLEL sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. The congruence of opposite sides and opposite angles is a direct consequence of the Euclidean parallel postulate and neither condition can be proven WITHOUT appealing to the Euclidean parallel postulate or one of its equivalent formulations. |
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