1. Section 4.3 Right Trigonometry

2. Right Triangle Definitions of Trigonometric Functions

5. Trigonometry values for a given angle
are always the same no matter how
large the triangle is

6. Example 1

7. Function Values for Some Special Angles

9. Example 2

10. Trigonometric Functions and Complements

11. Look back at the sines and cosines for the 30-60-90 triangle -
Cofunctions of
complementary angles
are equal!!!

13. Example 3

14. Applications

16. Example 4

18. Example 5

19. (a)
(b)
(c)
(d)

20. (a)
(b)
(c)
(d)

21. Homework:
Read Section 4.3
Complete pg
## (multiples of 4),
30-60 (even)