document.write( "Question 363723: 94. Areas of two circles. The radius of a circle is 1 meter
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document.write( "longer than the radius of another circle. If their areas differ
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document.write( "by 5 square meters, then what is the radius of each? \n" );
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Algebra.Com's Answer #259394 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Areas of two circles. The radius of a circle is 1 meter longer than the radius \n" ); document.write( " of another circle. \n" ); document.write( " If their areas differ by 5 square meters, then what is the radius of each? \n" ); document.write( ": \n" ); document.write( "Two radii, r, (r+1) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Divide both sides by pi \n" ); document.write( " \n" ); document.write( "2r + 1 = 1.59 \n" ); document.write( "2r = 1.59 - 1 \n" ); document.write( "2r = .59 \n" ); document.write( "r = \n" ); document.write( "r = .295 m is the radius of the smaller, 1.295 m is the radius of the larger \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check this on a calc: enter (pi*1.295^2) - (pi*.295^2) = 4.995 ~ 5 \n" ); document.write( " |