1. Chapter 2: Geometric Reasoning
Section 5: Algebraic Proofs
Megan Frantz Okemos High School Math Instructor

2. I Can Use the properties of equality to complete algebraic proofs.
Identify properties of equality and congruence.

3. Proofs
A proof is an argument that uses logic, definitions, properties and previously proven statements to show that a conclusion is true.
If you’ve ever simplified an expression or solved and equation in Algebra, then you’ve done a proof.

4. Back In Algebra Land…

5. Properties to Know

6. Example

7. Example

8. Proof in Geometry

9. More Properties

10. Example

11. I Can Use the properties of equality to complete algebraic proofs.
Identify properties of equality and congruence.