document.write( "Question 108778: C-12 Construction: How many cubic yards of concrete are needed to pour eight cylindrical pillars 12 ft 6 in high, each with a diameter of l ft 9 in.? \n" ); document.write( "
Algebra.Com's Answer #79364 by checkley71(8403)\"\" \"About 
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VOLUME=12.5*PI*D
\n" ); document.write( "SEEING AS YOU HAVE 8 COLUMNS MULTIPLY THIS BY 8 THUS:
\n" ); document.write( "8(12.5)(3.14*1.75)=549.5 CUBIC FEET.
\n" ); document.write( "1 CUBIC YARD = 27 CUBIC FEET.
\n" ); document.write( "THUS WE HAVE:
\n" ); document.write( "549.5/27=20.35 CUBIC YARDS OF CEMENT IS NEEDED.
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