Question

The diameter of the internal and external surface of a hollow hemisphere shell are 6cm 10cm respectively it is melted and recast into a cylinder of diameter 14cm find the height of the cylinder

Answer 1

Answer:

8/3 cm

Step-by-step explanation:

Internal diameter of hollow spherical shell = 6cm Internal radius of hollow spherical shell = 6/2 = 3 cm External diameter of hollow spherical shell = 10 cm  External radius of hollow spherical shell =10/2 = 5cm Diameter of cylinder = 14 cm  Radius of cylinder = 14/2 = 7 cm Let height of cylinder = x cm According to the question Volume of cylinder = Volume of spherical shell Height of cylinder = 8/3 cm