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math

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find the perimeter of a triangle if one side is 28 feet , another side is four-ninth the perimeter , and the third side is two-fifth the perimeter.

  • math -

    Assume that the perimeter is x
    x = 28 + (4/9)x + (2/5)x
    x(1 - 4/9 - 2/5) = 28

    Solve the calculation above, and you'll get the answer

  • math -

    560 feet

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