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Geometry Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence. Helen Keller Today: 2.6 Instruction Practice.

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Presentation on theme: "Geometry Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence. Helen Keller Today: 2.6 Instruction Practice."— Presentation transcript:

1 Geometry Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence. Helen Keller Today: 2.6 Instruction Practice

2 2.6 Reasoning with Properties from Algebra
Objectives: Use properties from algebra Use properties of equality Use properties of length and measure to justify segment and angle relationships Vocabulary: reflexive, substitution, symmetric, transitive, distributive

3 Geometry Organising is what you do before you do something, so that when you do it, it is not all mixed up. A.A. Milne Assignment: 2.5 p 131: 7, 9, 30 (set it up like in our notes, get as far as you can!), 52

4 2.6 Reasoning with Properties from Algebra

5 2.6 Reasoning with Properties from Algebra
statements reasons

6 2.6 Reasoning with properties from algebra
Using Midpoints in proofs. A M B

7 2.6 reasoning with properties from algebra
Given: M is the midpt of AB Prove: x = 3/2 9(x+1) 5x+15 A M B

8 Geometry Organising is what you do before you do something, so that when you do it, it is not all mixed up. A.A. Milne Assignment: 2.6 p 141 #9, 11, 17, 24, 43


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