Mathematics
The distance between two multi-storeyed buildings is 60 m. The angle of depression of the first building as seen from the top of the second building, which is 150 m high, is 30°. The height of the first building is :
115.36 m
117.85 m
125.36 m
128.34 m
Related Questions
From the foot of a tower, the angle of elevation of the top of a column is 60° and from the top of the tower, which is 25 m high, the angle of elevation is 30°. The height of the column is:
14.4 m
37.5 m
42.5 m
43.3 m
An observer standing 72 m away from a building notices that the angles of elevation of the top and the bottom of a flagstaff on the building are respectively 60° and 45°. The height of the flagstaff is:
52.7 m
73.2 m
98.3 m
124.7 m