1. Academy Algebra II/Trig 13.5, 13.6 (PC 6.1, 6.2): Law of Sines & Cosines HW: p. 894 (2-8 even) HW Monday: p.894 (9-12 all) Quiz 13.5, 13.6: Tues, 5/12

2. Solving triangles (other than right triangles)  Law of Sines  Law of Cosines The formula you choose depends on the information you are given. B A C a b c

3. 1.) Solve the triangle with the following: B A C a b c

4. 2.) Solve the triangle with the following: B A C a b c

5. 3.) Solve the triangle with the following: B A C a b c

6. Do Now: Solve the triangle with the following. B A C a b c

7. Solve the triangle with the following: B A C a b c

8. B A C a b c

9. Area of a Triangle B A C a b c Heron’s Formula

10. Do Now In major league baseball, the four bases form a square whose sides are 90 feet. The front edge of the pitching rubber on which the pitcher stands, is 60.5 feet from home plate. a.) Find the distance from the front edge of the pitching rubber to 1 st base. b.) Find the measure of the angle formed by 1 st base, the pitching rubber and home plate.

11. Find the area of the triangle: B A C a b c

12. B A C a b c

13. B A C a b c

14. B A C a b c

15. Example Forest Ranger Rich is at an observation point A along a straight road. He observes a fire in the direction 32 o east of north. Forest Ranger Sara is at a second observation point B 10 miles due east of Rich. Sara sights the same fire 48 o west of north. Find the distance from each ranger to the fire and find the shortest distance from the fire to the road.

16. Example The course for a boat race starts at a point and proceeds in the direction S52 o W to a point B, and in the direction S40 o E to point C, and finally back to point A. The point C lies 8 km directly south of point A. What is the length of the total course? HW Monday: p.894 (9-12 all) Quiz 13.5, 13.6: Tues, 5/12