question_answer

A metal pipe has an external diameter of 4 cm and internal diameter of 3 cm and is 20 cm long, then the volume of the metal used is

A) \[\text{22 c}{{\text{m}}^{\text{3}}}\]            

B)         \[\text{11}0\text{ c}{{\text{m}}^{\text{3}}}\]  

C) \[\text{22}0\text{ c}{{\text{m}}^{\text{3}}}\]           

D)         \[\text{44}0\text{c}{{\text{m}}^{\text{3}}}\]