Question 3
A tower and a building are on the same horizontal ground. An engineer on the top of the tower, 110 m high observes that the angle of elevation of the top of the building and the angle of depression of the foot of the building are 38 and 22 respectively. Calculate, correct to one decimal place, the:
- distance between the tower and the building;
- height of the building.
Observation
The Chief Examiner reported that this question was unpopular among candidates. A good percentage of candidates that attempted it could not could not draw the diagram.
They were expected to first draw the diagram as shown:
