Q: What is the volume of a cone when its radius is 20 feet and the height is 40 feet?

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Volume is 640.88 cubic feet.

The volume of a cone is exactly equal to one third the volume of a cylinder of equal height and radius. The volume of a cylinder is equal to πr2h, so the volume of a cone is πr2h/3

V = 2,617.99 ft3

A right circular cone with a base radius of 3 ft and a height of 9 ft has a volume of: 84.8 cubic feet.

Volume = 1/3*pi*52*15.5 = 405.789 cubic feet to 3 decimal places

Related questions

The volume of this cone is 148.44025 cubic feet.

The volume of this cone would be 640.8849 cubic feet.

Volume is 640.88 cubic feet.

9.8 feet, approx.

Volume of a cone: V = (1/3)πr2hAnswer: Volume is ~ 9,911.46 ft3

The volume of a cone is exactly equal to one third the volume of a cylinder of equal height and radius. The volume of a cylinder is equal to πr2h, so the volume of a cone is πr2h/3

V = 2,617.99 ft3

A right circular cone with a base radius of 3 ft and a height of 9 ft has a volume of: 84.8 cubic feet.

Volume = 1/3*pi*52*15.5 = 405.789 cubic feet to 3 decimal places

Height = 18.29072268 or about 18.291 feet Check: 1/3*pi*102*18.29072268 = 1915.4 cubic feet

The base radius is 0.8533 feet.

A cylinder with a radius of 1.5 feet and a height of 6 feet has a volume of 42.41 cubic feet.