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## Splash Screen

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### Splash Screen Lesson Menu Five-Minute Check (over Lesson 2 6) Then/Now Postulate 2.8: Ruler Postulate Postulate 2.9: Segment Addition Postulate Example 1: Use the ... – PowerPoint PPT presentation

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Title: Splash Screen

1
Splash Screen
2
Five-Minute Check (over Lesson 26) Then/Now Postu
late 2.8 Ruler Postulate Postulate 2.9
Segment Addition Postulate Example 1 Use the
Properties of Segment Congruence Proof
Transitive Property of Congruence Example
2 Real-World Example Proof Using Segment
Congruence
3
5-Minute Check 1
State the property that justifies the statement.
2(LM NO) 2LM 2NO
Property C. Substitution Property D. Multiplicatio
n Property
1. A
2. B
3. C
4. D

4
5-Minute Check 2
State the property that justifies the
statement. If m?R m?S, then m?R m?T m?S
m?T.
A. Distributive Property B. Substitution
Property C. Addition Property D. Transitive
Property
1. A
2. B
3. C
4. D

5
5-Minute Check 3
A. Multiplication Property B. Division
Property C. Distributive Property D. Substitution
Property
1. A
2. B
3. C
4. D

6
5-Minute Check 4
State the property that justifies the statement.
m?Z m?Z
A. Reflexive Property B. Symmetric
Property C. Transitive Property D. Substitution
Property
1. A
2. B
3. C
4. D

7
5-Minute Check 5
State the property that justifies the statement.
If BC CD and CD EF, then BC EF.
A. Reflexive Property B. Symmetric
Property C. Substitution Property D. Transitive
Property
1. A
2. B
3. C
4. D

8
5-Minute Check 6
Which statement shows an example of the Symmetric
Property?
A. x x B. If x 3, then x 4 7. C. If x
3, then 3 x. D. If x 3 and x y, then y 3.
1. A
2. B
3. C
4. D

9
Then/Now
You wrote algebraic and two-column proofs.
(Lesson 26)
• Write proofs involving segment addition.
• Write proofs involving segment congruence.

10
Concept
11
Concept
12
Example 1
13
Example 1
14
Example 1
15
Example 1
16
Example 1
A. Addition Property B. Substitution C. Definition
of congruent segments D. Segment Addition
Postulate
1. A
2. B
3. C
4. D

17
Concept
18
Concept
19
Example 2
Proof Using Segment Congruence
20
Example 2
Proof Using Segment Congruence
21
Example 2
22
Example 2
23
Example 2
A. Substitution B. Symmetric Property C. Segment