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Parallelograms 1
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Result
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Determine if the quadrilateral being described is a parallelogram. If the condition is not enough to conclude that the quadrilateral is a parallelogram, click not a parallelogram.

1. Both pairs of opposite sides are parallel.
parallelogram
not a parallelogram
Answer: parallelogram
2. Both pairs of opposite sides are congruent.
parallelogram
not a parallelogram
Answer: parallelogram
3. Both pairs of opposite angles are congruent.
parallelogram
not a parallelogram
Answer: parallelogram
4. Both pairs of opposite angles are supplementary.
parallelogram
not a parallelogram
Answer: not a parallelogram
5. Both pairs of adjacent angles are supplementary.
parallelogram
not a parallelogram
Answer: parallelogram
6. Diagonals bisect each other.
parallelogram
not a parallelogram
Answer: parallelogram
7. Two sides are parallel.
parallelogram
not a parallelogram
Answer: not a parallelogram
8. Two sides are congruent.
parallelogram
not a parallelogram
Answer: not a parallelogram
9. Two sides are parallel and congruent.
parallelogram
not a parallelogram
Answer: parallelogram
10. All sides are congruent.
parallelogram
not a parallelogram
Answer: parallelogram
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