7 meters in diameter and the height is 12 meters. What is the volume?

Answer 1

This could be referring to multiple things. Of those, a cylinder or cone seems most likely, so:

Cylinder: 588pi m^3 ~ 1847.2565 m^3

V=h*pi*r^2

V=12*pi*7^2

V=12*pi*49

V=588*pi ~ 1847.2565

Cone: 196pi m^3 ~ 615.7522 m^3

V=h*(1/3)*pi*r^2

This is the same as the above formula except for the 1/3, so simply dividing the previous answer gives:

V = (588pi)/3

V=196*pi ~ 615.7522