Question

HELP!! I FORGOT HOW TO FIND THE SURFACE AREA!

Answer 1

i keep trying to get the surface area and i keep getting a wrong answer. pls help?

Answer 2

i think it is 2 pi r * h + pi r^2

Answer 3

ive tried that!! I get some number like/. 15400.. or something. its not even close to being right.

Answer 4

also if they want to include the bottom
2 pi r * h + 2 (pi r^2)

Answer 5

if they want just the lateral
2 pi r* h

Answer 6

h=11 r = 5.5 plug in those numbers

Answer 7

5.5^2 * pi * 2 + 2*pi*5.5*11 = 570.1990666265474
answer C.

Answer 8

2 pi 5.5* 11+2 (pi 5.5^2)

Answer 9

yes

Answer 10

=13017.7385

Answer 11

thx remi(: !!