Question

The curved surface area of one cone is twice that of the other while the slant height of the latter is twice that of the former . the ratio of their radii is. (a) 2:1. (b) 4:1 (c) 8:1. (d) 1:1​

Answer 1

Answer:

4:1

Step-by-step explanation:

Let slant height of the first cone = ℓ then slant height of the second cone = 2ℓ

Radius of the first cone = r1 Radius of the second cone = r2

Then, curved surface area of first cone = π r1 ℓ

curved surface area of second cone = π r2 (2ℓ) = 2π r2 ℓ

Answer 2

Answer:

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