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math

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one of the equal sides of an isoceles triangle is 3m less than twice its base. The perimeter is 44m. Find the length of the sides. The teacher gave us the answer of 17m for the two sides and 10 for the base. What formula did he use to find this.

  • math -

    Let x = length of base

    Perimeter = sum of sides

    44 = 2(2x-3) + x

    Solve for x, then 2x -3.

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