In parallelogram PQRS, Q is a right angle. Is PQRS a rectangle?

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asked Dec 13, 2018 14.0k views

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Mohsen Bahman · Answer 1 · 2018-12-17T20:52:20+0000

Yes, this is because opposite angles of a parallelogram are congruent. The adjacent angles are supplementary. Since one angle is 90, the other angle must be 90. So this points to the fact that all angles must be 90 degrees.

In parallelogram PQRS, Q is a right angle. Is PQRS a rectangle?

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