answer: 0.00000141
the formula for volume of cylinder is given as:
[tex]V=\pi r^{2} h[/tex]
given dimensions are:
Radius = 0.0003/2 = 0.00015
Height= 20 meters
so volume will be =
3.14 * 0.00015 * 0.00015 * 20 = 1.41 * 10[tex]^{6}[/tex]
or 0.00000141 cubic meter