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teachoo.com
[Proof] A quadrilateral is a parallelogram if a pair of opposite sides
Theorem 8.8A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel.Given : ABCD is a quadrilateral where AB CD & AB = CDTo Prove : ABCD is a ParallelogramProof : Given AB CD with transversal AC. BAC = DCA I
Jan 21, 2025
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