Q. 464.7( 3 Votes )

The curved surfac A. 2 : 1

B. 4 : 1

C. 8 : 1

D. 1 : 1

Answer :

Curved surface area of a cone =

Given that curved surface area of 1^st = 2× curved surface area of 2^nd

And slant height of 2^nd = 2× slant height of 1^st

⇒ L= 2l

⇒ r : R = 4 : 1

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The curved surfac A. 2 : 1B. 4 : 1C. 8 : 1D. 1 : 1