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2 May, 20:53

A triangle has a perimeter of 91 centimeters. each of the two longer sides are three times as long as the shortest side. find the length of the three sides

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  1. 2 May, 21:37
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    perimeter = a+b+c

    a = short side

    b = 3a

    c = 3a

    a + 3a+3a = 91

    7a = 91

    a=91/7 = 13

    short side = 13cm

    long sides = 3*13 = 39cm each
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