# The curved surface area of a cylinder with its height equal to the radius

The curved surface area of a cylinder with its height equal to the radius, is equal to the curved surface area of a sphere. The ratio of volume of the cylinder to that of the sphere is

(a) √2:3

(b) 2√2:3

(c) 3:2√2

(d) 3:√2

Can you pls explain how u got this answer