11. A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30° with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60°. What is the distance between the base of the tower and the point P?
A. 4√3 units B. 8 units
C. 12 units D. Data inadequate
12. From a point P on a level ground, the angle of elevation of the top tower is 30ยบ. If the tower is 100 m high, the distance of point P from the foot of the tower is:
A. 149 m B. 156 m
C. 173 m D. 200 m
