Question 1018066
{{{V=pi*R^2*H=pi*x^3}}}
{{{SA=2pi*r^2+2pi*r*h=2pi*x^2+2pi*x^2=4pi*x^2}}}
{{{pi*x^3=4pi*x^2}}}
{{{x=4}}}
{{{r=h=4}}}