11. Five marks exercise problem V

A capsule is in the shape of a cylinder with two hemisphere stuck to each of its ends. If the length of the entire capsule is $12 \ mm$ and the diameter of the capsule is $3 \ mm$, how much medicine it can hold?

 

Answer:

 

The capsule can hold  $cm^2$ of medicine.

 

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