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23 October, 09:59

Find the perimeter of a rectangle whose length is 15 cm and length of one diagonal is 17cm

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  1. 23 October, 13:32
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    46 cm

    Step-by-step explanation:

    first, we use the Pythagorean theorem to determine the width:

    width = √ (17^2-15^2) = 8

    then

    perimeter = 2 (width+lengt) = 2 (8 + 15) = 2*23 = 46
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