Question

Two cones have their base radii in ratio of 3:1 and the rat the heights as 1-3. Find the ratio of their volumes.​

Answer 1

Answer:

Let their heights be h and 3h and their radii be 3r and r. <br> Then,

V_(1) = (1)/(3) pi (3r)^(2) xx h and V_(2) = (1)/(3) pi r^(2) xx (3h)

<br>

rArr (V_(1))/(V_(2)) = (3)/(1) rArr V_(1) : V_(2) = 3 : 1