2.6 algebraic proofs - 2.7 segment proofs - 2.8 angle ... · 2.6 algebraic proofs 2.7 segment...
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2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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"Do Now"
Ms. Stalvey has run the Cooper River Bridge Run in Charleston, SC, for two years
- both times in just under an hour!
Let's say she starts the Bridge Run at (2, 2) and finishes at (-3, -2).
How long did she run(about how long is the Bridge Run?)
2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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Last Night's Homework
2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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Quizzie Poo
2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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1234
Write a paragraph proof for:
Given: 2 and 4 are vertical angles
Prove: 2 4
2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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Unit 3: Reasoning and Proof2.6, 2.7, 2.8Algebraic Proofs, Segment Proofs, Angle Proofs
NameGeometry 4B
Date
AdditionProperty
of Equality
SubtractionProperty
of Equality
MultiplicationProperty
of EqualityDivisionProperty
of Equality
Properties true for any real numbers a, b, and c
2.6 Algebraic Proofs 2.7 Segment Proofs 2.8 Angle Proofs.notebook
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ReflexiveProperty
of Equality
SymmetricProperty
of Equality
TransitiveProperty
of Equality
SubstitutionProperty
of Equality
DistributiveProperty
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1. Solve for x and justify each step.
Given: m<AOC = 139
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2. Fill in each missing reason.
Given: LM bisects <KLN.
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3. Fill in the reason that justifies each step.
Solve for x.
4. Fill in the reason that justifies each step.
Solve for n.
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Another Type (Format) of Proof is a Two - Column Proof
Statements Reasons
2x + 5 = 11
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Given: <1 and <2 are supplementary <3 and <2 are supplementary
Prove: <1 <3
Two Column ProofStatements Reasons
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Paragraph Proof
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ReflexivePropertyof Angle
Congruence
SymmetricPropertyof Angle
Congruence
TransitiveProperty
of Equality