Question

4. If the height and radius of the cone are doubled, the volume of the cone
becomes
A) 6 times
B) 3 times C) 8 times D) 4 times​

Answer 1

Answer:

let, height=h

radius=r

so, volume= πr^2h

after fulfilling the above condition,

volume= π(2r)^2×2h= π×4r^2×2h= 8πr^2h

so the correct ans is c)8 times