11. Five marks exercise problem VI

The internal and external diameter of a hollow hemispherical shell are \(6 \ cm\) and \(10 \ cm\) respectively. If it is melted and recast into a solid cylinder of diameter \(14 \ cm\), then find the height of the cylinder.

 

Answer:

 

The height of the cylinder \(=\)  \(cm\)

 

[Note: Enter your answer up to two decimal places.]