document.write( "Question 363723: 94. Areas of two circles. The radius of a circle is 1 meter
\n" ); document.write( "longer than the radius of another circle. If their areas differ
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Algebra.Com's Answer #259394 by ankor@dixie-net.com(22740)\"\" \"About 
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Areas of two circles. The radius of a circle is 1 meter longer than the radius
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\n" ); document.write( "Two radii, r, (r+1)
\n" ); document.write( "\"pi%2A%28r%2B1%29%5E2\" - \"pi%2Ar%5E2\" = 5
\n" ); document.write( "\"pi%2A%28r%5E2%2B2r%2B1%29\" - \"pi%2Ar%5E2\" = 5
\n" ); document.write( "Divide both sides by pi
\n" ); document.write( "\"%28r%5E2%2B2r%2B1%29\" - \"r%5E2\" = \"5%2Fpi\"
\n" ); document.write( "2r + 1 = 1.59
\n" ); document.write( "2r = 1.59 - 1
\n" ); document.write( "2r = .59
\n" ); document.write( "r = \".59%2F2\"
\n" ); document.write( "r = .295 m is the radius of the smaller, 1.295 m is the radius of the larger
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\n" ); document.write( "Check this on a calc: enter (pi*1.295^2) - (pi*.295^2) = 4.995 ~ 5
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