Question 168724
For a cylinder, the volume equals the area of the base circle multiplied by height. 
{{{V=A[c]h}}}
{{{401.92=A[c](2)}}}
{{{A[c]=401.92/2=200.96}}}
The area of a circle using its diameter is,
{{{A[c]=(pi*d^2)/4}}}
{{{(pi*d^2)/4=200.96}}}
{{{d^2=255.87}}}
{{{d=15.996}}}
To the nearest inch, the diameter would be 16 inches.