document.write( "Question 1210579: The area of a circle is 9π in². What is the circumference, in inches? Express your answer in terms of piπ. \n" ); document.write( "

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\n" ); document.write( "The area of a circle is 9π in². What is the circumference, in inches? Express your answer in terms of piπ.
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document.write( "Use the formula for the area of a circle\r\n" );
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document.write( "     =   in^2.\r\n" );
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document.write( "where  'r'  is the radius of the scuare.\r\n" );
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document.write( "From this equation\r\n" );
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document.write( "         = 9,  r =  = 3.\r\n" );
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document.write( "Then the circumference of the circle is\r\n" );
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document.write( "    circumference =  =  =  inches.\r\n" );
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document.write( "ANSWER.  The circunference of the circle is   inches.\r\n" );
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