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Oxana [17]
3 years ago
7

A quadrilateral with 4 right angles is a rectangle. We already know that the opposite sides are congruent in parallelograms. Sin

ce rectangles are just special parallelograms, we already know that the opposite sides must be congruent because it’s true about parallelograms.
Mathematics
1 answer:
a_sh-v [17]3 years ago
8 0

Answer:

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.

Step-by-step explanation:

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