Question 1045810
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Hi,
 *[illustration cylinder_2.jpg].
Related Rates
V ={{{ pi*r^2 *h}}}
dV/dt = {{{pi (2r (dr/dt) h + r^2 (dh/dt))}}}  Applying Product rule 
Plug in values for r, h and (dr/dt) and (dh/dt) 
to find
dV/dt