A spherical cannon ball 28 cm in diameter is melted and recast into a right circular conical mould, base of which is 35 cm in diameter. Find the height of the cone.
Sphere radius = 282=14cm
volume of sphere = 43 π r3
It is melted and recast to a conical shape
it's radius = 352=17.5cm
Now according to the question
volume of sphere =volume of cone