Question

Find the Surface Area.
5 in​

Answer 1

Known :

r = 5 in

h = 4 in

Asked :

SA = ...?

Answer :

SA = 2πr² + 2πrh

= 2πr (r + h)

= 2 × 3,14 × 5 (5 + 4)

= 31,4 × 9

= 282,6 in²

Hope it helps and is useful :)