document.write( "Question 1151028: if the area of a circle is 121 pi then what is the circumference
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Algebra.Com's Answer #772622 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "First, you need to find the radius of the circle.\r\n" );
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document.write( "You write for the area\r\n" );
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document.write( "     = .\r\n" );
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document.write( "Then you cancel  in both sides\r\n" );
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document.write( "     = 121.\r\n" );
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document.write( "Then you take the square root from both sides\r\n" );
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document.write( "    r =  =  = 11.\r\n" );
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document.write( "Thus you found the radius of the circle  r = 11.\r\n" );
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document.write( "Then the circumference is\r\n" );
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document.write( "    C =  =  =  = 22*3.14 = 69.08 (approximately).     ANSWER\r\n" );
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