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29 August, 02:15

What are the parallelogram and quadrilateral rules

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  1. 29 August, 03:10
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    There are six important properties of parallelograms to know:

    Opposite sides are congruent (AB = DC).

    Opposite angels are congruent (D = B).

    Consecutive angles are supplementary (A + D = 180°).

    If one angle is right, then all angles are right.

    The diagonals of a parallelogram bisect each other.

    Each diagonal of a parallelogram separates it into two congruent triangles.
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