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Mathematics, 11.07.2019 17:20 cristinaarmijo1

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram?
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prove that all sides are congruent and have slopes that are opposite reciprocals
prove that segments ad and ab are congruent and parallel
prove that opposite sides are congruent and have equal slopes
prove that segments bc and cd are congruent and parallel

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