document.write( "Question 939340: The area of a circle is 154 \"+in%5E2+\". What is the circumference in the nearest inch? \n" ); document.write( "
Algebra.Com's Answer #572366 by srinivas.g(540)\"\" \"About 
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area of circle (a) =\"+pi%2Ar%5E2\"
\n" ); document.write( " \"+pi++=+22%2F7+=3.14\"
\n" ); document.write( " a = 154
\n" ); document.write( " \"+%2822%2F7%29%2Ar%5E2++=+154+\"
\n" ); document.write( " multiply with 7 on both sides
\n" ); document.write( "\"%2822%2F7%29%2Ar%5E2%2A7++=+154%2A7+\"
\n" ); document.write( "\"22%2Ar%5E2=154%2A7\"
\n" ); document.write( " divide with 22 0n both sides
\n" ); document.write( "\"22%2Ar%5E2%2F22=+154%2A7%2F22\"
\n" ); document.write( " \"r%5E2+=+7%2A7\"
\n" ); document.write( " \"+sqrt%28r%5E2%29=+sqrt%287%2A7%29\"
\n" ); document.write( " r= 7 inches
\n" ); document.write( "perimeter =2*pi*r
\n" ); document.write( " =\"2%2A%2822%2F7%29%2A7\"
\n" ); document.write( " =44 inches
\n" ); document.write( "result: perimeter = 44 inches
\n" ); document.write( "
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