Foundation
Mathematics Foundation
Surface Area and Volume
Cone
Surface Area and Volume
Question
A cone and a cylinder have the same base area. They also have the same curved surface area. If the height of the cylinder is 3m, then the slant height of the cone (in m) is
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Solution
Given
Radius of cone = Radius of cylinder and height of the cylidner h = 3m
We have
2prh = πrℓ
ℓ = 2h
ℓ = 2 × 3
ℓ = 6m