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° 27. x = 45°; 45°, 45°, 9032. x = 43°, y = 32° 4.1 HW pg. 221 #1-6, 14-18, 21-27, 32, 33, 35 4.2a HW pg. 229 #15, 16, 19, 20

2. 33. x = 118°, y = 96° 35. x = 26°, y = 64° 15. x = 2016. x = 1119. x = 3°, y = 1° 20. x = 5, y = 2 4.1 HW pg. 221 #1-6, 14-18, 21-27, 32, 33, 35 4.2a HW pg. 229 #15, 16, 19, 20

3. 3.  BCA   EFD 5.124° 6. 33°7. 8 8. 9.  ZYX10.  NML 11.  XYZ   ZWX, all parts are congruent 12. Not congruent21. B 4.2b HW pg. 228 #3, 5-12, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26

4. 1. Angles2. Neither3. Sides 4. Neither5. No,  RST   PQT6. Yes, SSS 7.Yes, SSS16. B17. B 21. 4.2b HW pg. 228 #3, 5-12, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26

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

6. 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. 26. 27. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38 Mark Pictures!

7. 34. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38

8. 35. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38

9. 37. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38

10. 38. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38

11. 3. Yes, AAS4. No5. Yes, ASA 6. No, AAA7. B8.  F   L 9.  F   L10. 14. Yes, SAS 15. No, AAA16. Yes, AAS17. Yes, SSS 18. No 4.5 HW pg. 252 #3-10, 14-18 WS

12. 4.5 HW pg. 252 #3-10, 14-18 WS Given Def. of angle bisector Given Reflexive AAS 1.

13. 2. 4.5 HW pg. 252 #3-10, 14-18 WS

14. 3. 4.5 HW pg. 252 #3-10, 14-18 WS

15. 4. 4.5 HW pg. 252 #3-10, 14-18 WS

16. 5. 4.5 HW pg. 252 #3-10, 14-18 WS

17. 4.6 HW pg. 259 #1-5odd, 6 WS 1. Congruent 3.  ABC   DBC by SSS 5.  JKM   LKM by HL 6.  CAD   BDA by AAS

18. 1. 4.6 HW pg. 259 #1-5odd, 6 WS Given Def. of midpoint SAS CPCTC Vertical angles

19. 2. 4.6 HW pg. 259 #1-5odd, 6 WS

20. 3. 4.6 HW pg. 259 #1-5odd, 6 WS

21. 4. 4.6 HW pg. 259 #1-5odd, 6 WS

22. 5. 4.6 HW pg. 259 #1-5odd, 6 WS

23. 4.7 HW pg. 267 #3-13, 15-17, 19 3.  A   D by the Base Angle Theorem 4.  A   BEA by the Base Angle Theorem 5. by the Base Angle Theorem Converse 6. 7. 128. 169. 60° 10. Base Angles: 37°, vertex angle: 106° 11. x = 2012. x = 613. x = 8

24. 4.7 HW pg. 267 #3-13, 15-17, 19 15. x = 39°, y = 39° 16. x = 48°, y = 70° 17. x = 45°, y = 5° 19. B

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

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

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

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

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

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

31. Ch 4 Review pg. 282-285 #1-5odd, 6-13, 15-20, 24, 26 pg. 286 #1-6 1.equiangular 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

32. Ch 4 Review pg. 282-285 #1-5odd, 6-13, 15-20, 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°

33. Proof Review Worksheet 1.

34. Proof Review Worksheet 2.

35. Proof Review Worksheet 3.

36. Proof Review Worksheet 4.

37. Proof Review Worksheet 5.

38. Proof Review Worksheet 6.