Question 959798
r and v are for the cone and for the Cylinder.
Let h be the height of the cone, unknown.  Note the base area of both are {{{pi*r^2}}}.
{{{(1/3)h*pi*r^2=144*pi*r^2}}}


{{{(1/3)h=144}}}
{{{h=144*3}}}
{{{highlight(h=432)}}}