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14 May, 15:13

How long is the width of a rectangle if it has a diagonal of 20, and a length of 12?

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  1. 14 May, 16:56
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    D=Vl^2+w^2

    20=V 12^2+W^2

    400 = 144+w^2

    w^2=400-144

    w^2=256

    w=V256

    w=16
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