Question

a metal pipe is 77cm long. the inner diameter of a cross section is 4cm, the outer diameter being 4.4cm. find the
total surface area of the metal used.​

Answer 1

Hey hi!

Here is Ur Ans.

metal pipe means cyclinder.

Answer 2

Refer The Attachment ⬆️

${\red{\bf{@MrMonarque}}}$

Hope It Helps You ✌️