A hollow cone of height 12 cm and inner radius 3 cm is melted to form an iron ball of radius 6 cm. Find the outer radius of the cone. (Take π = 22/7)
1
4.5 cm
2
9 cm
3
7.5 cm
4
8 cm
A hollow cone of height 12 cm and inner radius 3 cm is melted to form an iron ball of radius 6 cm. Find the outer radius of the cone. (Take π = 22/7)