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geometry

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a rectangle and an equilateral triangle have the same perimeter the length of the rectangle is 4 times its width the length of each side of the triangle is 55 centimeters what is the length,in centimeter of the triangle

  • geometry -

    rectangle:
    width -- x
    length -- 4x
    perimeter of rectangle = 2x + 8x = 10x

    perimeter of triangle = 3(55) = 165

    so 10x = 165
    x = 16.5

    then length of rectangle = 4x = 4(16.5) = 66

  • geometry -

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