Question 1092432
The formula for the surface area S of a cylinder is S=2πr^2+2πr2h. Solve the formula for the height h.
<pre>Formula: {{{matrix(1,3, SA, "=", 2 * pi * r^2 + 2 * pi * r * h)}}}
{{{matrix(1,3, SA, "=", 2 * pi * r(r + h))}}} ------- Factoring out {{{2 * pi * r}}}
{{{matrix(1,3, SA/(2 * pi * r), "=", r + h)}}} --------- Dividing by {{{2 * pi * r}}}
{{{highlight_green(matrix(1,3, SA/(2 * pi * r) - r, "=", h))}}} -------- Subtracting r
<b>BTW</b>, your formula is WRONG!