The formula for the volume of a cone is V = (1/3)π*r^2*h Of course, the radius is half the diameter, so is 11 m. Substituting the given values, you have V = (1/3)π(11 m)^2*(12 m) V = 484π m^3 V ≈ 1520.5 m^3
The volume of the cone to the nearest tenth is ... 1520.5 m³