Answer:
The volume for a cylinder is solved by using this equation: V= pi*r^2*h
Where we would use 3.14 in place for pi.
V=3.14(10^2)(10) 10 would be the radius because radius in half of your diameter which is 20
V=(3.14)(100)(10) where 10^2=100
After you multiply all the number together you get V=3,140 meters^3
Volume=3,140meters^3
Hope this helps ;)