1. + Section 4-1: Right Triangle Trigonometry and Section 4-2: Degrees and Radians Tuesday, November 11 th

2. + Chalk Talk

3. + A hot air balloon that is moving above a neighborhood has an angle of depression of 28° to one house and 52° to a house down the street. If the height of the balloon is 650 feet, estimate the distance between the two houses.

4. + The angle of elevation from a car to the top of an apartment building is 48°. If the angle of elevation from another car that is 22 feet directly in front of the first car is 64°, how tall is the building?

5. + A person standing 100 feet from the bottom of a cliff notices a tower on top of the cliff. The angle of elevation to the top of the cliff is 30°, and the angle of elevation to the top of the tower is 58°. How tall is the tower?

6. + Degree-Minute-Second (DMS) to Decimal Degree Form 60 minutes in a degree 60 seconds in a minute 56.375° 32°56’7’’

7. + 329.125°35°12’7’’

8. + Radian Measure https://www.youtube.com/watch?v=7QhgYX8cRE4

9. +

10. + To convert a degree measure to radian, multiply by To convert a radian measure to degree, multiply by

11. + Convert the degree measure to radians and vice versa. 120° -45°

12. + Coterminal angles 45°

13. + -30°