EQ: What are the different types of special angle pairs? Agenda:  Warm Up/Check Homework  Finish Special Angle Pairs Notes  Portfolio Information 

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Presentation transcript:

EQ: What are the different types of special angle pairs? Agenda:  Warm Up/Check Homework  Finish Special Angle Pairs Notes  Portfolio Information  Angle Addition Postulate Homework:  Angle Addition Worksheet AGENDA

Using the picture below answer these questions: WARM UP 1. Name an acute angle _____________ 2. Name an obtuse angle _____________ 3. Name a right angle _____________ 4. Name a straight angle _____________ 5. Name a pair of complementary angles ________________ 6. Name a pair of supplementary angles _________________

HOMEWORK 1. Obtuse 2. Right 3. Obtuse 4. Acute 5. Acute 6. Obtuse 7. Obtuse 8. Straight 9. Obtuse 10. Acute 11. Obtuse 12. Obtuse 13. Acute 14. Obtuse 15. Acute 16. Straight 17. Right 18. Obtuse 19. Acute 20. Acute 21. Obtuse 22. Acute 23. Obtuse 24. Acute 25. Acute 26. Obtuse 27. Obtuse 28. Acute

Special Angle Pairs Examples Congruent? Supp? Alternate Interior Angles  4 and  5 Alternate Exterior Angles  1 and  8 Corresponding Angles  2 and  6 Consecutive Angles  3 and  5 Vertical Angles  5 and  8

Portfolio Information

Angle Addition Postulate If a point S lies in the interior of ∠ PQR, then ∠ PQS + ∠ SQR = ∠ PQR.

If m ∠ WIJ = 97°, and m ∠ HIW = 48°, find m ∠ HIJ. Example 1

If m ∠ ABC = 93°, and m ∠ ABK = 37°, find m ∠ KBC. Example 2

Work on Homework