Geo 8.5 notes_applications
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This document provides examples and explanations for solving problems involving angles of elevation and depression using trigonometry. It includes 5 example problems calculating unknown sides and angles. Students are assigned problems from their textbook and a quiz on this material.
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Geo 8.5 notes_applications
- 1. 9.5: Angle of Elevation and Depression Objective: Use trigonometry to solve application problems. Standard: Geometry 19.0
- 2. Quick Review: 3 Trig functions: Finding sides: Finding angles:
- 3. Ex. 1) Solve for x and y. x y 32° 45 Ex. 2) Solve for x and y. 14 9 x° y
- 4. Angle of Elevation and Depression Angles always made with the _________
- 5. Ex. 3) An airplane is 500 ft. from the runway and 50 feet off the ground. What is the angle of depression of the plane?
- 6. Ex. 4) You are standing 50 ft. from the library. You measure the angle of elevation to be 55°. How tall is the library if you are 5 ft. 10 in. tall?
- 7. Ex. 5) The linear distance from Mr. Fjelstrom's room to McDonalds is 2293 ft. How much farther is it to walk to the street and down the road? 2293 ft. 75°
- 8. Assignment: - #11 p. 447 #1-18 (all), 31-37 (all) - Quiz 8.5 on Wed. 2/23 - Chapter 7 Test correction (Due by Friday, 2/25)