document.write( "Question 485770: The perimeter of a semicircle is doubled when the radius is increased by one. Find the radius of the semicircle. \n" ); document.write( "
Algebra.Com's Answer #332196 by ankor@dixie-net.com(22740)\"\" \"About 
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The perimeter of a semicircle is doubled when the radius is increased by one.
\n" ); document.write( "Find the radius of the semicircle.
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\n" ); document.write( "the perimeter of a semicircle = \"pi%2Ar\"
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\n" ); document.write( "\"2%2Api%2Ar\" = \"pi%2A%28r%2B1%29\"
\n" ); document.write( "Divide both side by pi
\n" ); document.write( "2r = r+1
\n" ); document.write( "2r - r = 1
\n" ); document.write( "r = 1 is the radius of the semicircle
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