Question

PLZ HELP ASAP SOLID GEOMETRY

Answer 1

1. use google
2. here is the formula
$2\pi \: r \: h \: + 2\pi \: r ^{2}$
3. plug it in

Answer 2

Formula for surface area of a cylinder with base radius r and height h is:

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

Now, just plug in 2 for r and 9 for h:

$2\pi(2)^2+2\pi(2)(9)$
$8\pi+36\pi$
$44\pi$