Question

hello this is what I'm working on on my homework questions and would like to do a couple of practice questions thank you

Answer 1

$\begin{gathered} r=4m \\ h=5m \\ SA=2\pi rh+2\pi r^2 \\ SA=2\pi(4m)(5m)+2\pi(4m)^2 \\ SA=40\pi m^2+32\pi m^2 \\ SA=72\pi m^2 \\ The\text{ exact surface area is 72}\pi m^2 \\ \\ The\text{ approximate surface area is 226.20 m}^2 \end{gathered}$