Question 778488
V is volume.
h is height, r is radius of base.
For a cone, {{{V=(1/3)h*pi*r^2}}}


Initial V, {{{(1/3)8*pi*6^2}}}
Changed V, {{{(1/3)6*pi*8^2}}}


Compare these volumes.
changed V divided by Initial V:
{{{((1/3)6*pi*8^2)/((1/3)8*pi*6^2)}}}
{{{(6*8^2)/(8*6^2)}}}
{{{(2*3*2*2*2*2*2*2)/(8*2*2*3*3)}}}
{{{(2^7*3)/(2^5*3^2)}}}
{{{2^2/3}}}
{{{highlight(4/3)}}}, the ratio of changed to initial volumes.