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

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The diagonals of a parallelogram bisect each other
Each diagonal of a parallelogram separates it into two congruent triangles.

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4.If one angle is right ,then all angle are right.
5.The diagonal of a parallelogram bisect each other.

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Opposite sides are congruent (AB = DC)
A + D = 180°
If one angle is right, then all angles are right

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- opposite angles are congruent (D=B)

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1.Opposite sides are congruent (AB=DC).

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A four sided plan rectilinear figure with opposite sides parallel
Opposite sides are congruent (AB = DC)

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Great Job!!

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parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.