Question 9:
The angle of elevation of the top of a building from the foot of the tower is 30° and the angle of elevation of the top of the tower from the foot of the building is 60°. If the tower is 50 m high, find the height of the building.
Answer:
Let AB be the building and CD be the tower.
In ΔCDB,
Therefore, the height of the building is 
.
Latest Govt Job & Exam Updates: