Applications of Trigonometry Heights and Distances Chapter 9 Exercise 9.1 Question 9
9. The angle of elevation of the top of a building from the foot of the tower is
and the angle of elevation of the top of the tower from the foot of the building is
. If, the tower is 50 m high, find the height of the building.
Solution:
, we have
m (1)
In
, we have
Putting equation (1), we get
m
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