NCERT Exercise 9.1 - Q7 - Some Applications of Trigonometry
Question: From a point on the ground, the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a 20 m high building are 45° and 60° respectively. Find the height of the tower.
Answer: The height of the tower is 20(sqrt(3) — 1) m.
Full step-by-step NCERT solution with diagrams on Something by Zero.