Question

Curved surface area of a right circular cylinder is 4.4 m². If the radius of the base of the cylinder is 0.7 m, find its height.

Answer 1

Curved surface area of the cylinder = 4.4 m2, r = 0.7 m, h = ? 

Curved surface area of the cylinder 

= 2πrh. ⇒ 4.4 = 2 × 22/ 7 × 0.7 × h 

⇒ h = 4. 4/ 4. 4 = 1 

Hence, height of the cylinder is 1 m Ans.