Given that the radius of the cylinder is 7cm and height is 2cm.
The formula for the volume of the cylinder is
[tex]V=\pi r^2h[/tex][tex]\text{Substitute }\pi=3,r=7\text{ and h=2, we get}[/tex]
[tex]V\approx3\times7^2\times2[/tex]
[tex]V\approx3\times7\times7\times2[/tex]
[tex]V\approx294cm^3[/tex]
Hence the required volume of the given cylinder is
[tex]V\approx294cm^3[/tex]
