Approx 9852.
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The formula for the circumference of a circle is C = pi r2 where r is the radius. Substituting 56 inches for the radius gives: C = pi(56)2 = (3136)pi inches.
The square root of pi times pi is simply pi. Because pi*pi=pi squared, the squared and the square root will cancel each other, leaving just pi.
Square root of Pi= 1.772454
The square root of pi is1.772453850905516027298167483314.
Square root of Pi is about 1.772