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Chapter 4.8 Solving Problems with Trig. Learning Target: I can use trigonometry to solve real-world problems.

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Presentation on theme: "Chapter 4.8 Solving Problems with Trig. Learning Target: I can use trigonometry to solve real-world problems."— Presentation transcript:

1 Chapter 4.8 Solving Problems with Trig. Learning Target: I can use trigonometry to solve real-world problems.

2 Definitions Angle of Elevation:Angle of Elevation: the angle through which the eye moves up from the horizon. Angle of Depression:Angle of Depression: the angle through which the eye moves down from the horizon.

3 Example #1 Find the height above the ground. 12 35°50° x h

4 Example #2 A U.S. Navy Destroyer leaves Norfolk, VA and averages 20 knots (nautical mph) traveling for 3 hours on a course of 61° and then 4 hours on a course of 125°. What is the ships bearing and distance from Norfolk?

5 Homework Pg. 431 # 3 – 21 every other odd

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