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If two opposite angles of a quadrilateral

are supplementary, is the quadrilateral a
parallelogram?

A) No, because in parallelograms, angles
are supplementary if and only if they are consecutive.

B) No, because opposite angles in a parallelogram are never congruent.

C) Yes, but only when the angles of the quadrilateral are right angles.
Otherwise, it will be a trapezoid rather than a parallelogram.

D) Yes, because only squares have that property, and squares are both
parallelograms and quadrilaterals.

User Maggick
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1 Answer

12 votes

Answer:

A

Explanation:

User Flpe
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