document.write( "Question 810908: A circle is inscribed in the square. If the area of the circle is 16π square centimeters, find the length of one of the diagonals of the square.
\n" ); document.write( "A=pi x r squared divided by 2
\n" ); document.write( "I got 25.12 which was incorrect. What am I doing wrong?
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Algebra.Com's Answer #488541 by richwmiller(17219)\"\" \"About 
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a=pi*r^2
\n" ); document.write( "why divided by 2??\r
\n" ); document.write( "\n" ); document.write( "r=4
\n" ); document.write( "2r=diameter and one side of square
\n" ); document.write( "diameter =8
\n" ); document.write( "one side = 8
\n" ); document.write( "2*8^2=128
\n" ); document.write( "sqrt(128)=diagonal
\n" ); document.write( "11.3 is the diagonal
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