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Given: AB=CD, BC=DA Prove: ABCD is a parallelogram
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Given: AB=CD, BC=DA
Prove: ABCD is a parallelogram

Given: AB=CD, BC=DA Prove: ABCD is a parallelogram-example-1
User Jiehong
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3 votes

Answer:

Explanation:

2) reflexive property

3) Triangle BCD, SSS

4) Angle 3, Angle 2

5) Alternate interior angles theorem

6) If a quadrilateral has 2 pairs of opposite sides that are parallel, the quadrilateral is a parallelogram.

User Grummle
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