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23-05-2018
Mathematics

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Which information is sufficient to prove that quadrilateral ABCD is a parallelogram? A)∠A≡∠C. B) AB=CD. C)∠A and ∠C are supplementary. D) the diagonals bisect each other.

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sqdancefan sqdancefan

23-05-2018

The one bit of information that is sufficient is ...
D) the diagonals bisect each other.

_____
While selections A and B are necessary, they are not sufficient. Choice C is not applicable to a parallelogram.

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