Question

The radius of curved surface of cylinder with height 7cm is 1cm, find its curved surface area

Answer 1

Volume of a cylinder=π.r^2.h

= (22/7).7.7.50. cu.cms

=7700 cu.cms. Answer.

Curved surface area = 2.π.r.h

= 2.(22/7).7.50

=2200 sq.cms. Answer.

Total surface area = 2.π.r.(h+r)

= 2.(22/7).7(50+7)

= 44.57

=2508 sq.cms.