Question

A spectator ascends to a tower to a small window at a height 'h' and observes the angle of depression of two object A and B on the horizontal plane to be 30° & 15°. If A and B are in a straight line with a point vertically below the window, prove that AB = 2h​

Answer 1

Answer:

I don't know

Step-by-step explanation:

so so sorry but I really don't know