document.write( "Question 493662: The circumference of circle II is 4 feet longer than the circumference of circle I. How many feet longer is the radius of circle II than the radius of circle I?
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Algebra.Com's Answer #335439 by stanbon(75887)\"\" \"About 
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The circumference of circle II is 4 feet longer than the circumference of circle I. How many feet longer is the radius of circle II than the radius of circle I?\r
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\n" ); document.write( "Formula: Circumference = (pi)(diameter) = (pi)(2r)
\n" ); document.write( "So radius = Circumference/(2pi)
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\n" ); document.write( "Circumference of circle I = pi*(2r)
\n" ); document.write( "radius of Circle I = r = C/(2pi)
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\n" ); document.write( "\n" ); document.write( "Circumference of circle II = 2(pi)r + 4
\n" ); document.write( "radius of Circle II = R = [2(pi)r+4]/(2pi) = [(pi)r +2]/pi = r + (2/pi)
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\n" ); document.write( "Circle II's radius is [2/pi] ft longer
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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