Question

If height of a cone is tripled and radius is doubled then how many times will be new volume becomes of the previous volume

Answer 1

Answer:

12

Step-by-step explanation:

let height=h

3 times = 3 h

radius=r

2 times=2 r

volume of cone,v=(1/3)pi.r^2.h

volume of new cone,V= (1/3)pi.(2r)^2.3h

                                 =(1/3)/pi.4r^2.3h

v:V

(1/3)/pi.r^2.h : (1/3)/pi.4r^2.3h

1:4x3

1:12

therefore volume of new cone is 12 times the old cone.

hope it helps....sorry if i am wrong