math
posted by darrel .
a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold?
Please explain throughly

Hello, again, Audrey.
http://www.jiskha.com/display.cgi?id=1305683772
Study this site.
http://www.mathsteacher.com.au/year9/ch14_measurement/18_cylinder/cylinder.htm
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