3-3: Parallel Lines Angles Unit 3: Geometry English Casbarro.

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3-3: Parallel Lines & 3-3: Parallel Lines & Angles Angles Unit 3: Geometry Unit 3: Geometry English Casbarro English Casbarro

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It is only when the lines are parallel that there are special congruent angles formed. But the angle names remain the same whether they are parallel or not.

Transcript of 3-3: Parallel Lines Angles Unit 3: Geometry English Casbarro.

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3-3: Parallel Lines & Angles3-3: Parallel Lines & AnglesUnit 3: GeometryUnit 3: GeometryEnglish CasbarroEnglish Casbarro

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It is only when the lines are parallel that there are special congruent angles formed. But the angle names remain the same whether they are parallel or not.

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You use the Same-Side InteriorAngles Postulateto prove the other theorems.

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Statements Reasons

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Notice that this looks different from the other proofs you have done. This is called a flow proof. You list the things that you know, and use arrows to show where the logical progression goes.

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Turn in the following problemsComplete the following proof:Given: l || mProve:

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2. Write a proof (2-column or paragraph) of the Same-Side Interior Angles Theorem. Given: r || s Prove: