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18 March, 09:18

One side of triangle is 2 times the shortest side. The third side is 19 feet more than the shortest side. The perimeter is 79. Find all three sides.

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  1. 18 March, 09:42
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    The three side lengths: 15, 30, and 34 feet

    Step-by-step explanation:

    Let the shortest side be a, then side b = 2a and side c = (b+19)

    We are given a+b+c=79

    Substituting for b and c

    a + 2a + (a + 19) = 79

    4a + 19 = 79

    4a=79-19=60

    4a=60

    a=15 feet

    b=2*15=30 feet

    c=15+19=34 feet
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