Question

If radius of a cone is doubled keeping the same slant height then find the ratio between new curved surface area to the original one
​

Answer 1

Answer:

please mark me brainlist please

Step-by-step explanation:

Let, Radius of smaller cone be r And, Radius of larger cone be 2r Let, Height of both cones be h

To find,

Ratio between volumes of larger and smaller cone

ATQ,

Volume of smaller cone=1/3πr²h

Again, Volume of larger cone=1/(2r)²h

= 1/3T4r²h

Now,

Ratio between both= (1/3TTr²h)/(3T4r²h)=1/4

Hope this helps you!