Q18 of 22 Page 258

Two similar cones have volumes 12 pi unit3 and 96 pi unit3. If the curved surface area of a smaller cone is 15 pi square units what is a curved surface area of a larger one?

Given the cones are similar,


Also, volume of 1st cone(v1) = 12π unit3


volume of 2ndcone(v2) = 96π unit3


And curved surface area of 2nd cone = 15π unit2



⇒






Let the curved surface area of the 2nd cone be x







x = 60


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