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

_________________

HOMEWORK1. Obtuse

2. Right3. Obtuse4. Acute5. Acute6. Obtuse7. Obtuse8. Straight9. Obtuse10. Acute11. Obtuse12. Obtuse

13. Acute14. Obtuse15. Acute16. Straight17. Right18. Obtuse19. Acute20. Acute21. Obtuse22. Acute23. Obtuse24. Acute

25. Acute26. Obtuse27. Obtuse28. Acute

Special Angle PairsExamples 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 Angles5 and 8

Portfolio Information

Angle Addition PostulateIf 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