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OpenStudy (anonymous):
Which property is a way to prove a quadrilateral is a parallelogram? Question 5 options: a) One pair of opposite sides is congruent b) One pair of opposite sides is parallel c) One pair of opposite sides is both parallel and congruent d) None of the above
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OpenStudy (anonymous):
c) One pair of opposite sides is both parallel and congruent
OpenStudy (anonymous):
ok thanks
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