Question 890452
For a cylinder, the volume is,
{{{V=pi*R^2*L}}}
So,
{{{V[p]=pi*r^2*10}}}
and
{{{V[q]=pi*(2r)^2*h}}}
Since the volumes are the same,
{{{10*pi*r^2=4h*pi*r^2}}}
{{{2h=5}}}
{{{highlight(h=5/2)}}}{{{cm}}}