Question 635492
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Hi,
<a target='_blank' title='ImageShack - Image And Video Hosting' href='http://imageshack.us/photo/my-images/834/cylinderg.png/'><img src='http://img834.imageshack.us/img834/5854/cylinderg.png' border='0'/></a>
cylinder with top 7m and height 11m
Assuming the 7m is the diameter  ( r = 3.5)
 V = {{{pi*r^2*h = 3.14(3.5)^2*11}}} = 423.1 m^3 (rounded to the nearest tenth