1. 1. C2. E3. F 4. A5. B6. D 14. x = 60°15. x = 3016. x = 134 17. x = 4718. x = 3621. 50° 22. 130°23. 50°24. 130° 25. 40°26. 30°32. y = 32° 33. x = 118°, y = 96° 35. x = 26°, y = 64° 15. x = 2016. x = 11 4.1 HW pg. 221 #1-6, 14-18, 21-26, 32, 33, 35 4.2a HW pg. 229 #15, 16

2. 3.  BCA   EFD 5.124° 6. 33°7. 8 8. 9.  ZYX10.  NML 21. B 4.2b HW pg. 228 #3, 5-10, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26

3. 1. Angles2. Neither3. Sides 4. Neither5. No,  RST   PQT6. Yes, SSS 7.Yes, SSS16. B17. B 24. 4.2b HW pg. 228 #3, 5-10, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26

4. 26. 4.2b HW pg. 228 #3, 5-12, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26

5. 1. Included 3.  XYW5.  ZWY 7.  XYZ 8. Not enough9. Enough 10. Enough 11. Not enough 13. Enough 14. Not enough 20. Not enough21. SAS 25. 27. 4.4 HW pg. 243 #3-7odd, 9-11, 13, 14, 20, 21, 25, 27, 35, 37, 38 Mark Pictures!

6. 35. 4.4 HW pg. 243 #3-7odd, 9-11, 13, 14, 20, 21, 25, 27, 35, 37, 38

7. 37. 4.4 HW pg. 243 #3-7odd, 9-11, 13, 14, 20, 21, 25, 27, 35, 37, 38

8. 38. 4.4 HW pg. 243 #3-7odd, 9-11, 13, 14, 20, 21, 25, 27, 35, 37, 38

9. 4.5 WS Given Def. of angle bisector Given Reflexive AAS 1.

10. 2. 4.5 WS

11. 3. 4.5 WS

12. 4. 4.5 WS

13. 5. 4.5 WS

14. 1. 4.6 WS Given Def. of midpoint SAS CPCTC Vertical angles

15. 2. 4.6 WS

16. 3. 4.6 WS

17. 4. 4.6 WS

18. 5. 4.6 WS

19. Marking Triangles Worksheet 1.  ______   _______ by ____________ 2.  ______   _______ by ____________ ABC ECD SAS ACB ECD AAS

20. 3.  ______   _______ by ____________ 4.  ______   _______ by ____________ ABC ECD AAS ABC EDC AAS Marking Triangles Worksheet

21. 5.  ______   _______ by ____________ 6.  ______   _______ by ____________ ABC ADC SAS ABC ADC SSS

22. Marking Triangles Worksheet 7.  ______   _______ by ____________ 8.  ______   _______ by ____________ BAC DAC AAS ABC ADC ASA

23. Marking Triangles Worksheet 9.  ______   _______ by ____________ 10.  ______   _______ by ____________ ABD CBD HL ADB CDB SAS

24. Marking Triangles Worksheet 11.  ______   _______ by ____________ 12.  ______   _______ by ____________ ADB CDB SAS ADB CDB SSS

25. 4.7 HW pg. 267 #7-13, 15-17, 19 7. 128. 169. 60° 10. Base Angles: 37°, vertex angle: 106° 11. x = 2012. x = 613. x = 8 15. x = 39°, y = 39°16. x = 48°, y = 70° 17. x = 45°, y = 5°19. B

26. Ch 4 Review pg. 282-285 #3, 5, 6-20, 24, 26 pg. 286 #1-6 3. Isosceles: 2 congruent sides. Scalene: No congruent sides 5. 6. x = 45°, Exterior angle = 65° 7. x = 15°, Exterior angle = 120° 8. x = 9°, Exterior angle = 90° 9. 60° 10. 15m11. 60°12. 50°13. x = 18 14. x = 11

27. Ch 4 Review pg. 282-285 #3, 5, 6-20, 24, 26 pg. 286 #1-6 15. True, SSS16. not true, BD  CA 17. True, SAS18. True, HL 19.  J   F20.  G   D 24. x = 65°26. x = 1 1. Equilateral, Acute2. Right, scalene 3. Isosceles, Obtuse4. x = 70° 5. x = 306. x = 75°

28. Proof Review Worksheet 1.

29. Proof Review Worksheet 2.

30. Proof Review Worksheet 3.

31. Proof Review Worksheet 4.

32. Proof Review Worksheet 5.

33. Proof Review Worksheet 6.