Mathematics, 15.12.2021 19:50 butt1562

Which of the following ways DOES NOT prove that a quadrilateral is a parallelogram? A. If both pairs of opposite sides of a quadrilateral are congruent, it is a parallelogram.
B. If the diagonals of a quadrilateral bisect each other, it is a parallelogram.
C. If both pairs of opposite angles of a quadrilateral are congruent, then it is a parallelogram.
D. If one pair of opposite sides of a quadrilateral are parallel and one pair of opposite sides are congruent, then it is a parallelogram.

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