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7 October, 11:41

The opposite angles of a parallelogram have measures of 3x-20 and x+15. Find x.

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  1. 7 October, 12:02
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    the opposite angles of a parallelogram are congruent.

    3x - 20 = x + 15

    2x = 35

    x = 17.5

    Answer: x = 17.5
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