Question

find the radius of the cylinder if area of its curved surface is 110 cm , and height is 5th.

Answer 1

Hello Mate!

Curved surface area if cylinder = 2πrh

Here, Curved surface area = 110 cm²

And height = 5 cm.

110 cm² = 2 × 22 / 7 × r × 5 cm

110 × 7 / 22 × 1 / 2 × 1 / 5 cm = r

22 × 7 / 22 × 1 / 2 cm = r

3.5 cm = radius.

Hence radius is 3.5 cm.

Have great future ahead!

Answer 2

Heyyyy mate

here is your answer..

curved surface area of cylinder= 2πrh

110cm= 2πrh

according to question,

given that ,
height = 5th

now, 110= 2×22/7×R×5


R= 110×7/44×5=770/220= 3.5

so, radius (r) = 3.5

hope it help you