Question

question show in the photo, don’t mind the answer in the text box

Answer 1

From the problem, we have the formula :

$T=2\pi rh+2\pi r^2$

Solving for h in terms of T and r will be :

$\begin{gathered} T=2\pi rh+2\pi r^2 \\ T-2\pi r^2=2\pi rh \\ \frac{T-2\pi r^2}{2\pi r}=h \\ \frac{T}{2\pi r}-r=h \end{gathered}$

The answer is :

$h=\frac{T}{2\pi r}-r$