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Gabylovesyou

  • 2 years ago

Triangle congruence and similarity

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  1. Gabylovesyou
    • 2 years ago
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    What is the flaw in the student's proof? Justification 4 should be "AB ÷ AD = AB ÷ AC because triangle ABC is similar to triangle ABD." Justification 1 should be "Angle ABC = Angle BCD and Angle BCA = Angle DBC." Justification 2 should be "BC ÷ DC = AC ÷ BC because triangle ABC is similar to triangle BDC." Justification 3 should be "Angle ABC = Angle ADB and Angle BAC = Angle BAD."

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  2. Gabylovesyou
    • 2 years ago
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    @ganeshie8 I don't get this one ;/

  3. ganeshie8
    • 2 years ago
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    |dw:1393350721762:dw|

  4. ganeshie8
    • 2 years ago
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    first two statements are about using : \(\triangle ABC \sim \triangle BDC\)

  5. ganeshie8
    • 2 years ago
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    there is no flaw in those statemetns

  6. ganeshie8
    • 2 years ago
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    lets look a bit closely at statement 3

  7. ganeshie8
    • 2 years ago
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    |dw:1393350999487:dw|

  8. ganeshie8
    • 2 years ago
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    say, that angle = \(\alpha\)

  9. ganeshie8
    • 2 years ago
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    you wid me ? :)

  10. ganeshie8
    • 2 years ago
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    if u set up the angles correctly u will get : Justification 3 should be "Angle ABC = Angle ADB and Angle BAC = Angle BAD."

  11. Gabylovesyou
    • 2 years ago
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    oh ok thank you so much and sorry... openstudy is kinda acting crazy for me

  12. ganeshie8
    • 2 years ago
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    same here... it is acting up from last couple of hours lol

  13. ganeshie8
    • 2 years ago
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    i see all oranges.. and lag..

  14. Gabylovesyou
    • 2 years ago
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    yessss !! me too haha

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