From the fourth story of a building that is 20 metres tall, Shaun observes a car
moving towards the building driving on the street below. If the angle of depression
of the car changes from 15 to 45 while he watches, how far did the car travel?
Calculate to one decimal place.
Car
Starts
The car travelled:
54.6 m
94.6
74.6 m
40.0 m
d
Car
Ends
Shaun
30
20 m