Question 388919
  <pre><font size = 3 color = "indigo"><b>
Hi,         
using the cone on the left for illustration Purposes:
{{{V = (1/3)*pi*r^2 *h}}}
{{{V = (1/3)*pi*9^2 *12}}}
{{{V = (1/3)*pi*9^2 *12}}}
{{{V = highlight( 324*pi)}}}
<img src="http://upload.wikimedia.org/wikipedia/commons/d/d2/Cone_3d.png">