12. Find the distance travelled by the boy

A boy of height 0.7 \(m\) is walking towards a \(71 \ m\) Qutub minor tower. The angle of elevation from his eyes to the top of the tower increases from 30\(^{\circ}\) to 60\(^{\circ}\) as he walks towards the tower. Find the distance he walked towards the tower.

 

Answer:

 

The distance the boy walked towards the tower is $i\sqrt{i}$ \(m\).

 

(Note: If it is a whole number, write as it is. If not, round off to \(3\)(max) decimal places.)