ANSWERS TO EVENS If angle 1 is obtuse, then angle 1 = 120

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Presentation transcript:

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.

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 + 10 + 3x = 180, x = 17 129 51 +2 +2 +1 +1 +1

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

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

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”.

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!!

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