1.

The volume of a right circular cone, whose radius of the base is half of its altitude, and the volume of a hemisphere are equal. The ratio of the radius of the cone to the radius of the hemisphere is:

A. 2 : 1
B. 1 : 1
C. ∛2 : 1
D. √2 : 1
Answer» C. ∛2 : 1


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