document.write( "Question 457907: PLEASE HELP!!
\n" ); document.write( "Set up an equation and solve the following problem. Find the length of a radius of a circle such that the circumference of the circle is numerically equal to the area of the circle.
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Algebra.Com's Answer #314236 by ankor@dixie-net.com(22740)\"\" \"About 
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Set up an equation and solve the following problem.
\n" ); document.write( " Find the length of a radius of a circle such that the circumference of the
\n" ); document.write( " circle is numerically equal to the area of the circle.
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\n" ); document.write( "We know, Area = \"pi%2Ar%5E2\" and Circumference = \"2%2Api%2Ar\"
\n" ); document.write( "Problem is: Area = Circumference, therefore
\n" ); document.write( "\"pi%2Ar%5E2\" = \"2%2Api%2Ar\"
\n" ); document.write( "Divide both sides by \"pi%2Ar\"
\n" ); document.write( "\"%28pi%2Ar%5E2%29%2F%28pi%2Ar%29\" = \"%282%2Api%2Ar%29%2F%28pi%2Ar%29\"
\n" ); document.write( "Cancels the \"pi%2Ar\", we are left with
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\n" ); document.write( "r = 2 is the length of the radius
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\n" ); document.write( "See if that is true
\n" ); document.write( "\"pi%5E2%5E2%29\" = 12.556
\n" ); document.write( "\"2%2Api%2A2%29\" = 12.566; of course r=2 is the only value where this is true, right?
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