Question

the radius and height of a right circular cylinder are in the ratio of 2:3 if the volume of the cylinder is 1617 cm².then find the radius and height of cylinder​

Answer 1

Answer:

Let the radius of the base of the cylinder be 2x and its height be 3x.

Volume of a cylinder =

(2x)2 (3x) = 1617

x = = 3.5 cm

r = 7 cm, h = 10.5 cm

Curved surface area of the cylinder = 2rh