1. Chapter 2 Section 5 Verifying Segment Relationships
Geometry
Chapter 2 Section 5
Verifying Segment Relationships

2. To prove a conditional statement
Take a specific case of the general hypothesis
Prove that that specific case must conform to the conclusion

3. If it is a rectangle then it has 4 sides
Given: DERF is a rectangle Prove: DERF has 4 sides

4. Congruence of Segments
Reflexive
Symmetric
Transitive
You can use substitution

5. D C B A Given: Segment ABCD Prove: AD=AB+BC+CD Segment ABCD
Statement
Reason
Segment ABCD
AD=AB+BC+CD

6. A Postulate
A conjecture that has no counter example, even though great effort to find one has occurred

7. Theorem
A statement that can be proven

8. Paragraph Proof
Write the 2 column proof as a paragraph

9. A
Statement
Prove B C G Z R
Given: GZ ZR
Prove: GR

10. Do Now!
Page
Problems 5-12, 15 – 29, 31 &