Question

If the circumference of the base of a right circular cylinder is 110 cm, then find its curved surface area and volume

Answer 1

Answer:

height of cylinder is not mentioned

let us consider height be h

let radius be r

circumference of circle=2πr

110cm=2 x 22/7 x r

=> r = 10 x 7/4

r = 35/2cm

CSA of cylinder = 2πr x h

= 2 x 22/7 x 35/2 x h

= 22 x 5 x h = 110h cm²

volume of cylinder = π x r² x h

= 22/7 x 35/2 x 35/2 x h

= 962.5h cm³

hope this will help you..

Answer 2

Answer:

the radius of a circle is 7 cm.if its volume is 2002 cm

then find its total surface area and height