Question

http://prntscr.com/75zvqv

Answer 1

Do you want to find the volume?

Answer 2

do you need to find the volume?

Answer 3

Um. the surface area

Answer 4

ditto :P

Answer 5

do you know the formula for it?

Answer 6

yes

Answer 7

ok \(2πrh+2πr^2\)
plug in what you have

Answer 8

the diameter is 10 so radius is 10/2

Answer 9

what's 10/2?

Answer 10

5

Answer 11

ok so now put that into the formula
\(2π5h+2π5^2\)

Answer 12

now the height is?

Answer 13

2*3.14*5*12=376.8

Answer 14

Height is 12

Answer 15

ok
so you got the first part done

Answer 16

now \(2π5^2\)

Answer 17

It's preferable to plug in \(\pi\) instead of 3.14. You get a more accurate answer.

Answer 18

2*3.14*25=157

Answer 19

now add them

Answer 20

376.8+157=533.8

Answer 21

so that would be your answer

Answer 22

okay thanks

Answer 23

it's not exact though
you will get different answers close to each other

Answer 24

okay

Answer 25

thanks again

Answer 26

yw \(\ddot\smile\)