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6 August, 20:58

In parallelogram ABCD, (BC) ̅=3x+15 and (AD) ̅=5x+3. What is the length of (AD) ̅?

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  1. 6 August, 21:33
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    This is what the parallelogram will look like, and since BC and AD should equal the same length, you set them equal to each other to find x.

    3x+15 = 5x+3

    12 = 2x

    6 = x

    Now that you have found x you plug it in to the equation of length AD.

    5 (6) + 3 = 30+3 = 33

    Your answer should be 33.
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