Question

7.
made with radius 5 cm and height 12 cm.
The ratio of the radii of two right circular cones of same height is 1:3. Find the ratio
of their curved surface area when the height of each cone is 3 times the radius of the
smaller cone.​

Answer 1

Answer:

We are given that The ratio of the radii of two right circular cones of same height is 1:3.

Let the ratio be x

So, radius of small cone = x

Radius of large cone = 3x

Height of both the cones are same .

We are given that the height of each cone is 3 times the radius of the smaller cone

So, Height = 3x

Explanation:

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