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Geometry and Trigonometry Difficulty: Medium

A right circular cylinder has a height of 8 meters m and a base with a radius of 12 m. What is the volume, in m3, of the cylinder?

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Explanation

Choice D is correct. The volume, V, of a right circular cylinder is given by V=πr2h, where r is the radius of the circular base and h is the height of the cylinder. It’s given that the cylinder has a height of 8 meters and a base with a radius of 12 meters. Substituting 12 for r and 8 for h in V=πr2h yields V=π(12)28, or V=1,152π. Therefore, the volume, in m3, of the cylinder is 1,152π.

Choice A is incorrect and may result from conceptual or calculation errors.

Choice B is incorrect and may result from conceptual or calculation errors.

Choice C is incorrect. This is the volume, in m3, of a cylinder with a radius of 8 meters and a height of 12 meters.