The horizontal distance between two towers is and the angle of depression of the top of the first tower as seen from the top of the second is If the height of the second tower is , then the height of the first tower is
None of these
The explanation for the correct answer.
Find the height of the other tower.
Given that: Height of the second tower is and the distance between the towers is
From the figure, and are the first and second towers respectively.
Therefore in triangle
Hence option is the correct answer.