The circumference of the cylinder(top circle):
[tex]8 = 2 \pi r[/tex]
Solving this we get r = 1.27
The formula for volume of a cylinder is[tex]V = \pi r^{2}h [/tex].
Since the height is 5(aka the width) and the radius is 1.27
[tex]V = \pi * (1.27)^{2}*5[/tex]
We then get the Volume is 25.3225 the we round to the nearest whole number which is 25.
Hope I helped :)