1. Evaluate each expression if a = 11, b = -1, and c = -8
Bell Ringer * Bell Ringers will be review from here on out to help prepare you for the placement test and the ACT Aspire. I will not answer questions about the Bell Ringer. You may use notes to help you, but everything will be review so you should know it.
Evaluate each expression if a = 11, b = -1, and c = -8
1. a – – c a – (-7) c - b

2. Let’s talk about how you did on your 3rd 9 Weeks Test.
How Did you Do?
Let’s talk about how you did on your 3rd 9 Weeks Test.

3. New 9 Weeks/New Bathroom Passes
If you were absent yesterday, turn in your old ones to me!!

4. Section 11.1 Angle and Line Relationships
R drive > Key > March 9_13 > 11.1_Angle & Line Relationships File > Save As > P drive > Math > March 9_13 > 11. 1_Angle & Line Relationships *If you would like to, you may create a New Folder called 3rd 9 Weeks and move everything from Jan until now into that folder. *You may throw away anything EXCEPT STUDY GUIDES from 3rd 9 weeks from your binder. This must be done AT HOME, NOT HERE.

5. Introduction
Pairs of angles can be classified by their relationship to each other.
This is a very vocabulary heavy section. Expect vocabulary on EVERY test and quiz.
Keep up with this vocabulary EVERY DAY!!! I want it somewhere easy for you to grab and use. Expect pop quizzes.

6. Vocabulary
Vertical Angles – Two pairs of opposite angles formed by two intersecting lines. The angles formed are congruent.

7. Vocabulary
Adjacent Angles – Two angles that are “side by side”, share a common ray, and do not overlap

8. These are examples of adjacent angles.
45º
80º
35º
55º
130º
50º
85º
20º

9. These angles are NOT adjacent.
100º
50º
35º
35º
55º
45º

10. Vocabulary
Supplementary Angles – When the sum of two angles adds up to 180 ˚.

11. Vocabulary
Complementary Angles- When the sum of 2 angles adds up to 90˚.

12. Practice Time!

13. Directions: Identify each pair of angles as vertical, supplementary, complementary, or none of the above.

14. #1
120º
60º

15. #2
60º
30º

16. #3
75º
75º

17. #4
60º
40º

18. #5
60º
60º

19. #6
135º
45º

20. #7
25º
65º

21. #8
90º
50º

22. Directions
Determine the missing angle

23. #1 ?º
45º

24. #2 ?º
65º

25. #3 ?º
35º

26. #4 ?º
50º

27. #5 ?º
140º

28. #6 ?º
40º

29. Example 1 Find a Missing Angle Measure

30. Example 2 Find a Missing Angle Measure

31. Example 3 Find a Missing Angle Measure
Classify the relationship of ∠a and ∠b.
If m∠a = 53˚, what is the measure of ∠b?

32. Homework Section 11.1 #1-3, 10-12, 1-4

33. Homework Section 11.1 #1-3, 10-12, 1-4