1. Chapter 7
Section 1

3. Figure: A ray or half-line

4. Figure

5. Figure: Standard position of an angle

6. Figure

7. Figure

8. Example

9. Example 1 Solution

10. Solution b. Figure 7: -90° angle a. Figure 6: 45° angle
c. Figure 8: 225° angle
d. Figure 9: 405° angle

11. Convert between Decimal and Degree, Minute, Second Measures for Angles

13. Example

14. Solution

15. Figure: Radians

16. Find the Length of an Arc of a Circle

17. Figure:

18. Theorem

19. Example

20. Solution

21. Convert from Degrees to Radians and from Radians to Degrees

22. Figure
1 revolution = 2π radians

24. Example

25. Solution

26. Example

27. Solution

28. Table: Commonly encountered angles

29. Figure

30. Find the Area of a Sector of a Circle

31. Figure: Sector of a Circle

32. Figure:

33. Theorem

34. Example

35. Solution

36. Find the Linear Speed of an Object Traveling in Circular Motion

37. Definition

38. Figure:

39. Definition

41. Example
Figure 17

42. Solution