defence exam Indian Coast Guard Assistant Commandant (GD/CPL) 2025 Test Series Mathematics Trigonometry Heights and Distances
The angle of elevation of the top of an unfinished pillar of height 150 m from a point on the ground is 30°. If the angle of elevation at the same point is to be 45°, then the pillar has to be raised to a height of how many metres?
1
150 m
2
109.8 m
3
112.5 m
4
115.8 m