railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Heights and Distances
The angle of elevation of a point A on the ground from the top of a tower is 30°. On going 20 m towards the foot of the tower, the angle of elevation changes to 60°. What is the distance of the tower from point A?
1
5√11 m
2
30 m
3
5 m
4
16 m