Question

5.
A sphere and a cone are of the same radii and some heights. Find
the ratio of their curved surface area.​

Answer 1

Step-by-step explanation:

sphere surface area=4πr×r_________(1)

cone surface area=(πr×r)+πLr________(2)

devide (1)/(2)

4πr×r÷πr×r+Lπr

πr×(4r)÷πr(r+L)

(4r)/(r+l)