2016 April(73E) Math Question 51

Perimeter, Area, Volume

- Other Shapes

51. The volume of a right circular cone with radius r and height h is 1/3 pi r^2h, where r and h have the same unit of measure. Cones A and B are both right circular cones. The radius of Cone B is 2 times the radius of Cone A. Cone B's height is 1/2 Cone A's height. Compared to the volume of Cone A, the volume of Cone B is:

Choice D

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