1. ANSWERS TO EVENS If angle 1 is obtuse, then angle 1 = 120
An angle is a straight angle if and only if it measures 180
Subtraction
Transitive
Definition of Angle Bisector
32, 32, 122 60
Definition of Perpendicular Lines
If perpendicular, then the angles are comps.
20) I will do the proof.

2. Answers to Quiz (33 Total Points)+2
M is the midpoint of AB if and only if AM = MB
2x + 10 = 32, x = 11
4y + y + 30 = 180, y = 30
7x x = 180, x = 17
129 51 +2 +2 +1 +1 +1

3. Answers to Quiz +2 +2 +2 +2 +2 +2 +2 +2 +2 Segment Addition Postulate
Vertical Angles Theorem
Angle Addition Postulate
Definition of Perpendicular Lines
Definition of Right Angles
Definition of Complements
Definition of Angle Bisectors
Angle Bisector Theorem
Definition of Midpoint +2 +2 +2 +2 +2 +2 +2 +2

4. Answers to Quiz +2 +2 +2 Midpoint Theorem
Definition of Segment Bisector
If 2 angles are complements of the same angle, then the angles are congruent +2 +2

5. STUDY GUIDE Terms to Know Hypothesis – If Conclusion – Then
Converse – Switch IF and THEN
Counterexample – To prove if-then wrong
Biconditional – “if and only if”-- Take the if away, replace the then with “iff”.

6. STUDY GUIDE Properties from Algebra Postulates and Definitions
Theorems: You can only abbreviate the way we did in class
Look over your Bag O’ Tricks!!

7. Questions??? Homework: Page 68 #1-12*, Pg. 65 Self Test #2-7
*#12 is 4 steps