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Mathematics 22 Online
OpenStudy (anonymous):

In quadrilateral ABCD, diagonals AC and BD bisect one another:

OpenStudy (anonymous):

OpenStudy (anonymous):

What statement is used to prove that quadrilateral ABCD is a parallelogram? Angles ABC and BCD are congruent. Sides AB and BC are congruent. Triangles BPA and DPC are congruent. Triangles BCP and CDP are congruent.

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