A metallic spherical shell of internal and exter¬nal diameters 4 cm and 8 cm, respectively is melted and recast into the form of a cone of base diameter 8 cm. The height of the cone is:
A. 12 cm
B. 14 cm
C. 18 cm
D. 21 cm
Answer:B
A metallic spherical shell of internal and exter¬nal diameters 4 cm and 8 cm, respectively is melted and recast into the form of a cone of base diameter 8 cm. The height of the cone is:
A. 12 cm B. 14 cm C. 18 cm D. 21 cm