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Posted by on Sunday, August 21, 2011 at 4:35am.

if perimeter of a square is increased 25%.what will be the increased area %?

  • math - , Sunday, August 21, 2011 at 9:44am

    area of two circles varies directly as the square of their radii or the square of their perimeters.

    so ratio of areas = (1.25)^2 / 1 = 1.5625
    it will be 156.25% of the old one.

    so the area increases by 56.25%

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