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

Published byBeatrice Gibbs Modified over 9 years ago

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Presentation on theme: "3-3: Parallel Lines & Angles Unit 3: Geometry English Casbarro."— Presentation transcript:

1 3-3: Parallel Lines & Angles Unit 3: Geometry English Casbarro

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3 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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5 You use the Same-Side Interior Angles Postulate to prove the other theorems.

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9 Statements Reasons

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12 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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16 Turn in the following problems Complete the following proof: Given: l || m Prove: 1. 2. Write a proof (2-column or paragraph) of the Same-Side Interior Angles Theorem. Given: r || s Prove:

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