Question

will fan and medal for help, attached below

Answer 1

\(SA_{cylinder}=2 \pi r^2 + 2 \pi rh\)
you can think of this as 2 circles (the top and bottom) and then the area of the rectangle wrapped around.

Answer 2

so, let's do 3 first, h = 16
r=8

Answer 3

\(2 \pi *64+2 \pi *8*16=128 \pi + 256 \pi = 384 \pi\)

Answer 4

ok i drew it out

Answer 5

wut which one, no drawing necessary

Answer 6

#3, its just easier for me to learn by drawing it out xD

Answer 7

oh, alright lol. I won't question her grace's methods

Answer 8

visually, unwrapping the cylinder gives you a rectangle and 2 circles.