You can put this solution on YOUR website! A container is a cylinder.
The volume of a cylinder is found using V = pir^2h, where pi = 3.14, r = radius and h = height.
If the diameter is 2m, then the radius is 1m. The height is 3m.
We plug and chug.
V = (3.14)*(1)^2 * (3)
V = 9.42m^3
NOTE: The m^3 indicates that this is a volume problem and volume is measured in cubic units.