document.write( "Question 311383: How many gallons in a 13' circular pool 3' deep? \n" ); document.write( "
Algebra.Com's Answer #222722 by nerdybill(7384)\"\" \"About 
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How many gallons in a 13' circular pool 3' deep?
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\n" ); document.write( "\n" ); document.write( "One US gallon is 0.133681 cubic feet
\n" ); document.write( "Volume of pool= (pi)r^2(depth)
\n" ); document.write( "Volume of pool= (3.14)(13/2)^2(3)
\n" ); document.write( "Volume of pool= 397.995 cubic feet
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\n" ); document.write( "Gallons:
\n" ); document.write( "397.995/0.133681 = 2977.2 gallons
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