The Total solution for NCERT class 6-12
A metallic sphere ofradius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm.Find the height of the cylinder.
It is given that radius of the sphere (R) =4.2 cm
Also, Radius of cylinder (r) = 6 cm
Now, let height of cylinder = h
It is given that the sphere is melted into acylinder.
So, Volume of Sphere = Volume of Cylinder
тИ┤ (4/3)├Ч╧А├ЧR3┬а= ╧А├Чr2├Чh.
h = 2.74 cm