13. Exercise problems VI

A \(1.5 m\) tall boy is standing at some distance from a \(30 m\) tall building. The angle of elevation from his eyes to the top of the building increases from \(30^°\) to \(60^°\) as he walks towards the building. Find the distance he walked towards the building.

 

Required distance \(=\) \(m\)

 

Note: Enter the answer upto two decimal places.