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Mathematics, 03.10.2019 11:00 giiiselleee05

For what value of x must abcd be a parallelogram?

justify your reasoning with theorems/postulates and show all work to receive credit.


For what value of x must abcd be a parallelogram?  justify your reasoning with theorems/

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For what value of x must abcd be a parallelogram?

justify your reasoning with theorems/...
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