Question

A cylindrical metal container with base radius of r metres and height h metres holds 54πm^3.

(a) Show that the surface area of the container is πr^2 +(108π/r) no lid.

Answer 1

Easy ? Then help me then xD

Answer 2

Gosh , i h8 proving

Answer 3

S.A. of a cylinder = \[2\pi r + 2 \pi r h\]

Answer 4

I know that , im not stupid btw ,I need to show argh

Answer 5

Find the Radius first.

Answer 6

Volume = pi r h

54 = r * h

Answer 7

Still there is something missing!

Answer 8

What's missing ?>

Answer 9

Radius or Height.

Answer 10

LOL, nvm i already got help for another website xD .
Thank you anyway (: