Question

the Diameter of the base of a cylinder is 3.5 cm and its height is 10 cm. find its curved surface area

Answer 1

c s a of cylinder=2πrh
=2*22/7*3.5/2*10
=20* 3.14*1.75
=62.8*1.75
=you find this

Answer 2

c.s.a = 2πrh
= 2x22/7x35/20x10
=22x5
=110cm²