1. BRING ‘EM OUT! Your tests, that is. Please get them to me. Right meow.

2. Objectives: -Identify parallel, perpendicular, and skew lines -Identify angles formed by two lines and a transversal

3. CHAPTER 3 What we’ve done: Started proofs Points, lines, planes, angles No constructions (yet) What we’ll do in Chapter 3: More proofs! Relationships between lines, transversals, and the resulting angles Still no constructions

4. Markings

6. Example Identify: 2 pairs of parallel segments

7. Example Identify: 2 pairs of parallel segments

8. Example Identify: 2 pairs of parallel segments

9. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments

10. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments

11. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments

12. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments

13. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments

14. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments

15. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments

16. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments 2 pairs of parallel planes

17. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments 2 pairs of parallel planes

18. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments 2 pairs of parallel planes

19. Example Identify: 2 pairs of parallel segments 2 pairs of skew segments 2 pairs of perpendicular segments 2 pairs of parallel planes

20. Your Turn

28. Justification Bank

29. Example Identify: 2 pairs of corresponding angles

30. Example Identify: 2 pairs of corresponding angles 2 pairs of same-side interior angles

31. Example Identify: 2 pairs of corresponding angles 2 pairs of same-side interior angles 2 pairs of alternate exterior angles

32. Example Identify: 2 pairs of corresponding angles 2 pairs of same-side interior angles 2 pairs of alternate exterior angles 2 pairs of alternate interior angles

33. Your Turn

34. Example Identify the transversal and classify each angle pair <1 and <5

35. Example Identify the transversal and classify each angle pair <1 and <5 <3 and <6

36. Example Identify the transversal and classify each angle pair <1 and <5 <3 and <6 <1 and <4

37. Example Identify the transversal and classify each angle pair <1 and <5 <3 and <6 <1 and <4 <2 and <3

38. Example Identify the transversal and classify each angle pair <1 and <5 <3 and <6 <1 and <4 <2 and <3 <2 and <6

39. HOMEWORK 3-1 (14-32)