Question

The angle of elevation θ of the top of a light house as seen by a person on the ground is such that tan θ = 5/12. when the person moves a distance of 240 m towards the light house the angle of elevation becomes φ such that tan φ = ¾. find the height of the light house.

Answer 1

Hope this will help you.........

Answer 2

$\textbf{Answer is in Attachment !}$