Question

An open cone has a slant height of 5m and a curved surface area of 251, Find the radius of the circular base.What is the answer:18 16

Answer 1

Radius of the cone = 16 m

Explanation:

Slant height of the cone 'l' = 5 m

Curved surface area of the cone is represented by the formula,

Curved surface area = πrl

Here r = radius of the circular base of the cone

l = slant height of the cone

By putting the values in the formula,

251 = πrl

251 = πr(5)

r =
`(251)/(5\pi)`

r = 15.979

r ≈ 16 m

Therefore, radius of the given cone will be 16 m.