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Which of the following conditions is not sufficient to prove that a quadrilateral is a parallelogram? A. Two pairs of side are parallel. B. Two pairs of opposite sides are congruent. C. Two consecutive
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Which of the following conditions is not sufficient to prove that a quadrilateral is a parallelogram?

A. Two pairs of side are parallel.
B. Two pairs of opposite sides are congruent.
C. Two consecutive angles are supplementary.
D. Two diagonals bisect each other.​

User Monika
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5.0k points

1 Answer

11 votes

Answer: D

Explanation:

A counterexample is an isosceles trapezoid.

User Aaron Thomas
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