Chapter 3 Review KEY (textbook pages 202 – 205
1. alternate interior angles
2. skew lines
3. transversal
4. point-slope form
5. rise; run
6. Possible answer: DE and BC are skew.
7. AB ││DE
8. AD
DE
9. plane ABC ││plane DEF
10. l ; alternate interior angles
11. n ; corresponding angles
12. m ; alternate exterior angles
13. m ; alternate exterior angles
14. m
WYZ = 90⁰
15. m
16. m
KLM = 100⁰
DEF = 79⁰
17. m
QRS = 76⁰
18. 4 = 6; Conv. of Alt. Int. Angles Th
19. 1 = 5; Conv. of Corr. Angles Post
20. m
6 = 66, m
3 = 114, supplementary, Conv. of Same-Side Int. Angles Th
21. m
1 = 99, m
7 = 99, congruent, Conv. of Alt. Ext. Angles Th
22. KM
23. x – 5 < 8; x < 13
24. AD ││ BC; AD
AB
AB, DC
BC, Given
BC Perpendicular Transversal Theorem
AB ││ CD (2 lines perpendicular to the same line, then 2 lines ││)
25. m = -1/7
26. m = 5/3
27. neither
28. parallel
29. perpendicular
30. y = -4/9x + 11/3
31. y = 2/3x – 2
32. y – 0 = 2( x – 1)
33. parallel
34. intersect
35. coincide (same line)