A 1.5 m tall boy observes a pole. The angle of elevation of the top of the pole is 30° from the eyes of the boy. Then he approaches the pole by 7.3 m. Now the angle of elevation is 45°. Find the height of the pole from the ground.
Take √3 = 1.731
8.5 m
2
11.5 m
3
10 m
4
11 m