Download 4.8 Solving Problems Name: with Trigonometry Objectives

4.8 Solving Problems
with Trigonometry
Name: _________________
Objectives: Students will be able to apply the concepts of
trigonometry to solve real-world problems.
Nov 15­1:00 PM
The angle of depression of a buoy from the top of a lighthouse
130 feet above the surface of the water is 6o. Find the distance
x from the base of the lighthouse to the buoy.
Nov 15­1:18 PM
1
From the top of a 100 ft tall building a man observes a car
moving toward the building. If the angle of depression of the
car changes from 22o to 46o during the period of observation,
how far does the car travel?
Nov 15­1:37 PM
To measure the height of a cloud, you place a bright searchlight
directly below the cloud and shine the beam straight up. From a
point 100 feet away from the searchlight, you measure the angle
of elevation of the cloud to be 83o12'. How high is the cloud?
Assignment: 1-7 odd, 16
Nov 15­2:28 PM
2
Nov 21­7:49 AM
3