An aluminium sphere of radius \(12 \ cm\) is melted to make a cylinder of radius \(8 \ cm\). Find the height of the cylinder.
 
Answer:
 
Volume of cylinder is given by cu.units.
 
Volume of the sphere is given by cu.units.
 
Since, the aluminium sphere is melted to make a cylinder we have:
 
The height of the cylinder \(=\)  \(cm\)