5 ways to prove a quadrilateral is a parallelogram

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Description and Tags

Geometry & Trigonometry

Right Triangles & Trigonometry

10th

5 Terms

1
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1st way
Prove both pairs of opposite sides are parallel
2
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2nd way
Prove both pairs of opposite sides are congruent
3
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3rd way
Prove same pair of opposite sides is parallel and congruent
4
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4th
Prove both pairs of opposite angles are congruent
5
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5th
Prove both diagonals are bisected