graciebear21 graciebear21

01-02-2018
Mathematics

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When is a quadrilateral a parallelogram?
A. When opposite sides are parallel but not congruent.
B. When opposite sides are congruent but not parallel.
C. When opposite sides are congruent and parallel.
D. none of the above

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gracebedford gracebedford

01-02-2018

C. when opposite sides are congruent and parallel

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