Question

two cones have their heights in ratio 1:3 and radii of their bases in the ratio 3:1 find the ratio of there volumes. plz explain in easy or long way

Answer 1

i hope this will usful to u

Answer 2

let the heights be 1x and 3x respectively
and their radii be 3y and 1y .
volume of cone1 = volume of cone 2
1/3$\pi$r$^{2}$h =1/3$\pi$r$^{2}$h
1/3$\pi$(3y)$^{2}$x =1/3$\pi$(1y)$^{2}$3x
9y$^{2}$ * x =y$^{2}$*3x
9:3
3:1