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1. C 2. E 3. F 4. A 5. B 6. D 14. x = 60 ° 15. x = 30 16. x = 134

4.1 HW pg. 221 #1-6, 14-18, 21-27, 32, 33, 35 4.2a HW pg. 229 #15, 16, 19, 20. 1. C 2. E 3. F 4. A 5. B 6. D 14. x = 60 ° 15. x = 30 16. x = 134 17. x = 47 18. x = 36 21. 50° 22. 130° 23. 50° 24. 130° 25. 40° 26. 30°

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1. C 2. E 3. F 4. A 5. B 6. D 14. x = 60 ° 15. x = 30 16. x = 134

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  1. 4.1 HW pg. 221 #1-6, 14-18, 21-27, 32, 33, 35 4.2a HW pg. 229 #15, 16, 19, 20 1. C 2. E 3. F 4. A 5. B 6. D 14. x = 60° 15. x = 30 16. x = 134 17. x = 47 18. x = 36 21. 50° 22. 130° 23. 50° 24. 130° 25. 40° 26. 30° 27. x = 45°; 45°, 45°, 90 32. x = 43°, y = 32°

  2. 4.1 HW pg. 221 #1-6, 14-18, 21-27, 32, 33, 35 4.2a HW pg. 229 #15, 16, 19, 20 33. x = 118°, y = 96° 35. x = 26°, y = 64° 15. x = 20 16. x = 11 19. x = 3°, y = 1° 20. x = 5, y = 2

  3. 4.2b HW pg. 228 #3, 5-12, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26 • 3. • BCA  EFD • 124° 6. 33° 7. 8 • 8. 9. ZYX 10.NML • 11. XYZ  ZWX, all parts are congruent • 12. Not congruent 21. B

  4. 4.2b HW pg. 228 #3, 5-12, 21 4.3 HW pg. 237 #1-7, 16, 17, 24, 26 • 1. Angles 2. Neither 3. Sides • 4. Neither 5. No, RST  PQT 6. Yes, SSS • Yes, SSS 16. B 17. B • 21.

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

  6. 4.4 HW pg. 243 #1-7odd, 9-11, 13, 14, 20, 21, 25-27, 34, 35, 37, 38 1. Included 3. XYW 5. ZWY 7. XYZ 8. Not enough 9. Enough 10. Enough 11. Not enough 13. Enough 14. Not enough 20. Not enough 21. SAS 25. 26. 27. Mark Pictures!

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

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

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

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

  11. 4.5 HW pg. 252 #3-10, 14-18 WS 3. Yes, AAS 4. No 5. Yes, ASA 6. No, AAA 7. B 8. F  L 9. F  L 10. 14. Yes, SAS 15. No, AAA 16. Yes, AAS 17. Yes, SSS 18. No

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

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

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

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

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

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

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

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

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

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

  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. 12 8. 16 9. 60° 10. Base Angles: 37°, vertex angle: 106° 11. x = 20 12. x = 6 13. 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. 2. ______ _______ by ____________ ABC ECD ______ _______ by ____________ ACB ECD SAS AAS

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

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

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

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

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

  31. Ch 4 Review pg. 282-285 #1-5odd, 6-13, 15-20, 24, 26 pg. 286 #1-6 • 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. 15m 11. 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, SSS 16. not true, BD  CA 17. True, SAS 18. True, HL 19. J  F 20. G  D 24. x = 65° 26. x = 1 1. Equilateral, Acute 2. Right, scalene 3. Isosceles, Obtuse 4. x = 70° 5. x = 30 6. 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.

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