Question

The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. Find the diameter of the base of the cylinder.

Assume `pi = 22/7`

 

Answer 1

Height (h) of cylinder = 14 cm

Let the diameter of the cylinder be d.

Curved surface area of cylinder = 88 cm²

⇒ 2πrh = 88 cm² (r is the radius of the base of the cylinder)

⇒ πdh = 88 cm² (d = 2r)

`rArr22/7xxd xx14cm = 88" cm"^2`

⇒ d = 2 cm

Therefore, the diameter of the base of the cylinder is 2 cm.