Question 637373
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
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A right circular cylinder has height 6  and volume 54pie
{{{ r^2 = V/(pi*h) = 54pi/(pi*6) = 9}}}
r^2 = 9,  r = 3  and  {{{C = 2pi*r =  6pi}}}