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Explain 1 way to determine if a quadrilateral has congruent angles

User Fbenoit
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Answer:

If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram. If one pair of opposite sides of a quadrilateral are parallel and congruent, then the quadrilateral is a parallelogram.

Explanation:

Hope that helped.

User Fade
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