) A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast into a sphere. The radius of the sphere is
A. 4.2 cm
B. 2.1 cm
C. 2. 4 cm
D. 1.6 cm
Answer:B
) A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast into a sphere. The radius of the sphere is
A. 4.2 cm B. 2.1 cm C. 2. 4 cm D. 1.6 cm
Explanation: Given that the height of cone = 8.4 cm