Question 789347
{{{S=2pi*r*h + 2pi*r^2 }}}
Solve for h
{{{2pi*r*h = 2pi*r^2 - S }}}
{{{h = (2pi*r^2 - S)/(2*pi*r) }}}
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or,
{{{h = r - S/(2*pi*r) }}}