Imma give brainliest If opposite sides are congruent (but not all sides are equal) and diagonals are congruent then the quadrilateral is a

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If a quadrilateral is a parallelogram, then its diagonals bisect each other. If a quadrilateral is a parallelogram, then consecutive angles are supplementary. If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.

{3 + i, 3 - i, 3, -1}

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make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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