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March 25, 2017

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The diagonals of a rectangle are 12 inches long and intersect at an angle of 60 degrees. Find the perimeter of the rectangle.

  • Geometry - ,

    The angle bet. the diag. and the long
    side = 30 deg.

    X = 12cos30 = 10.4in = l0ng side.
    Y = 12sin30 = 6in = short side.

    P = 2*10.4 + 2*6 = 32.8in.

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