Question 947689
{{{ A=pr^2+pr*sqrt(r^2 +h^2) }}}

Solve for h.
=================
{{{A - pr^2 = pr*sqrt(r^2 +h^2)}}}
{{{(A - pr^2)^2 = p^2r^2(r^2 + h^2)}}}
{{{(A - pr^2)^2/p^2r^2 = r^2 + h^2}}}
{{{(A - pr^2)^2/p^2r^2 - r^2 = h^2}}}
{{{h = sqrt((A - pr^2)^2/p^2r^2 - r^2)}}}