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March 27, 2017

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in a triangle the middle length side is 3 more than the shortest side, and the longest side is double the middle lenght side the perimeter of the triangle is 45cm find the lenghts of the side

  • geometry - ,

    u do the math

  • geometry - ,

    Shortest side = X cm.
    Middle side = (X + 3)cm.
    Longest side = 2(x + 3) = (2X + 6)cm.

    X + (X + 3) + (2X + 6) = 45cm,
    4X + 9 = 45,
    4X = 45 - 9 = 36,

    X = 9cm = Shortest side.
    X + 3=9 + 3 = 12cm=Middle length side.
    2X + 6 = 18 + 6 = 24cm = Longest side.

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