document.write( "Question 626831: a semicircular driveway has a diameter of 180 ft. How long is the driveway?\r
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Algebra.Com's Answer #394449 by jim_thompson5910(35256)\"\" \"About 
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C = pi*d\r
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\n" ); document.write( "\n" ); document.write( "C = 3.14*180\r
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\n" ); document.write( "\n" ); document.write( "C = 565.2\r
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\n" ); document.write( "\n" ); document.write( "So the circumference of the entire circle is 565.2 feet\r
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\n" ); document.write( "\n" ); document.write( "Therefore, half of the circle is 565.2/2 = 282.6 feet (approximately)\r
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