The diameter of a metallic sphere is 6 cm. It is melted and drawn into a wire of diameter 2 cm, then the length of the wire is:
A. 12 cm
B. 18 cm
C. 36 cm
D. 66 cm
Answer:C
The diameter of a metallic sphere is 6 cm. It is melted and drawn into a wire of diameter 2 cm, then the length of the wire is:
A. 12 cm B. 18 cm C. 36 cm D. 66 cm