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Posted by on Friday, August 15, 2014 at 9:01am.

If the circumference of a circle of radius r inches is equal to the perimeter of square with a side length of s inches, r/s=
A. 4/π
B. 2/π
C. √2/π
D. √2/π
E. 1/2π

I need help.

  • math - , Friday, August 15, 2014 at 9:06am

    side of square = 2
    so perimeter of square = 4s

    circumference of circle with radius r is 2πr

    so ...

    2πr = 4s
    πr = 2s
    r/s = 2/π

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