Question

What is the curved surface area (in cm2) of a cylinder having radius of base as 21 cm and height as 30 cm?

Answer 1

Answer:

Step-by-step explanation:

Please see the attachment below.

Hope it helps.

Answer 2

Answer:3960 cm²

Step-by-step explanation:

csa of cylinder= 2*pi *r*h

                        =2*22/7*21*30

                        =3960 cm²