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Sunshine447

Triangle ABC is shown below. Given: ∆ABC Prove: All three angles of ∆ABC add up to 180°. The flow chart with missing reason proves the measures of the interior angles of ∆ABC total 180°. Which reason can be used to fill in the numbered blank space? Definition of Supplementary Angles Substitution Definition of Complementary Angles Angle Addition Postulate

  • one year ago
  • one year ago

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  1. Sunshine447
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    I have no clue where to even start...

    • one year ago
  2. Sunshine447
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    ...... lemme save the pictures, hold on

    • one year ago
  3. Sunshine447
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    • one year ago
  4. Sunshine447
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    here are the pictures @Hero

    • one year ago
  5. Hero
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    Hint: The measure of angle EBD is the sum of other the other three angles.

    • one year ago
  6. Sunshine447
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    i still dont understand

    • one year ago
  7. Sunshine447
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    D?

    • one year ago
  8. Sunshine447
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    i think it's D but I'm not positive...

    • one year ago
  9. Hero
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    D is correct.

    • one year ago
  10. Sunshine447
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    thanks

    • one year ago
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