How to prove a quadrilateral is a trapezoid but not a parrallelogram

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Mathematics

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31 May, 04:03

How to prove a quadrilateral is a trapezoid but not a parrallelogram

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Gay · Answer 1

To prove a quadrilateral is a parallelogram, you must use one of these five ways. Prove that both pairs of opposite sides are parallel. Prove that both pairs of opposite sides are congruent. Prove that one pair of opposite sides is both congruent and parallel. Prove that the diagonals bisect each other.