A solid cylinder of radius r and height h is placed over another cylinder of the same height and radius. The total surface area of the shape so formed is:

(a) 4πrh

(b) 4πrh + 2πr2

(c) πrh + πr2

(d) none of these.


Here height of cylinder = 2h

Radius = r

TSA of cylinder = 2πr(h + r)

= 2πr(2h+r)

= 4πrh + 2πr2

Hence option b is the answer.

Was this answer helpful?


5 (1)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *




Free Class