1. Warm-Up 3/24-25 What are three basic trigonometric functions and the their ratios? Sine: sin  Cosine: cos  Tangent: tan 

3. Rigor: You will learn how to solve right triangles, and find the three basic trigonometric ratios. Relevance: You will be able to solve real world problems using trigonometric ratios.

4. Trig 1: Right Triangle Trigonometry

5. Special Right Triangles

6. 60 30 x 45 x x Example 1: Solve the triangles. a. b. s

7. Trigonometric Ratios: ratios of sides of a right triangle. opposite adjacent hypotenuse opp adj hyp

8. 3 Basic Trigonometric Ratios: 3 basic:

9. 3 4 5 30 40 50

10. θ 3 7 opp adj hyp

11. 1 3

12. x 7 adj hyp Make sure your calculator is in degrees.

13. 12 15.7 opp hyp

14. Checkpoints: 1. Fill out chart with exact values.

15. Assignment: Special Right Triangles & Trig Worksheet, 1-22 all

16. 7 th Warm-Up 3/25

17. Assignment: Special Right Triangles & Trig Worksheet, 1-22 all