1. 2-5 Reasoning in
Algebra and Geometry
*I can identify and use the properties of equality.
(addition, subtraction, multiplication, division,
reflexive, symmetric, transitive, and substitution.)
*I can use the distributive property to justify
combining like terms
*I can use the properties of congruence to justify a
statement. (reflexive, symmetric, transitive)

3. a
c c
0
c
a c
a

4. 4 3
20 4 3 3
100 20 60 9
120 51

5. NAB
NAB
2x – 75
x – 75
x

6. A
N
Q

7. Given
Congruent segments have equal measure
Reflexive Property of Equality
Addition Property of Equality
Segment Addition Postulate
Definition of congruence

8. Objective Practices:
 Lesson Check: pg. 116 #1 – 4
 Due at end of class
 HW: pgs. 117 – 119 # 5 – 25 odds