How do I find the volume of a cone? Round to the nearest whole number.

Image is blurred, so I must assume that the radius of the base is 9 yd and that the height of the cone is 40 yd.
Volume of a cone formula: V = (1/3)(area of base)(height of cone)
Here, this volume is V = (1/3)(pi*81*40) yd^3, or V = 1080 pi yd^3.