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TheForbiddenFollower Group Title

Give the missing reasons in this proof of the Alternate Interior Angles Theorem. https://www.connexus.com/content/media/451160-12162010-102628-AM-439106449.png

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  1. TheForbiddenFollower Group Title
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    • one year ago
  2. TheForbiddenFollower Group Title
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    if you cant view the picture (i think you cant) there is that :)

    • one year ago
  3. aroub Group Title
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    Well, for reason 3. It's definitely vertical angles are congruent but for reason 2. Can we like state a theorem? Or not? Because I wasn't allowed to do so in some proofs.

    • one year ago
  4. TheForbiddenFollower Group Title
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    yeah, anything is fine :)

    • one year ago
  5. aroub Group Title
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    Great :) So, I think reason 2. You can say that if two lines are parallel and they are cut by a tranversal then corresponding angles are congruent.

    • one year ago
  6. aroub Group Title
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    And also we can say in reason 4. the same thing but instead of corresponding we say alternate

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  7. TheForbiddenFollower Group Title
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    thanks. i give you a vote :)

    • one year ago
  8. aroub Group Title
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    You're welcome! Haha, thanks :)

    • one year ago
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