document.write( "Question 872153: a square fence with area 100ft^2 is reshaped into circular fence. What is the area of the new circular fence?
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Algebra.Com's Answer #525964 by josgarithmetic(39617)\"\" \"About 
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100=10^2, so side length of the square is 10 feet. Perimeter is 4*10=40 feet.\r
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\n" ); document.write( "\n" ); document.write( "Circumference of this perimeter turned into a circle is \"2%2Api%2Ar=40\";
\n" ); document.write( "\"r=20%2Fpi\".\r
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\n" ); document.write( "\n" ); document.write( "This circle's area is \"pi%2Ar%5E2=pi%2A%2820%2Fpi%29%5E2=highlight%28400%2Fpi=127.3%29\".
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