A man places a mirror on the ground and sees the reflection of the top of a building, as shown. Find the height of the building.

Question

anonymous · Answer

attachment

a_clan · Answer

this problem can easily be solved if both the triangles are similar. In that case, 
5           h 
--  =   ---
6          50
However, in order to apply this formula, it is mandatory to first prove that both triangles are similar. This requires a basic knowledge of mirror reflection in Physics.
Check the attachment