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luisz Group Title

Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side. Given: ∆ABC Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC. Draw ∆ABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the x-axis at (x2, 0). Label point D as the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2; the quantity 0 plus y sub 1, divided by 2 by th

  • 2 years ago
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  1. luisz Group Title
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    eh

    • 2 years ago
  2. luisz Group Title
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    hold on

    • 2 years ago
  3. luisz Group Title
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    Gina wrote the following paragraph to prove that the segment joining the midpoints of two sides of a triangle is parallel to the third side. Given: ∆ABC Prove: The midsegment between sides Line segment AB and Line segment BC is parallel to side Line segment AC. Draw ∆ABC on the coordinate plane with point A at the origin (0, 0). Let point B have the ordered pair (x1, y1) and locate point C on the x-axis at (x2, 0). Label point D as the midpoint of Line segment AB with coordinates at Ordered pair the quantity 0 plus x sub 1, divided by 2; the quantity 0 plus y sub 1, divided by 2 by the Midpoint Formula. Label point E so it is the midpoint of Line segment BC with an ordered pair of Ordered pair the quantity of x sub 1 plus x sub 2 divided by 2; the quantity of 0 plus y sub 1 divided by 2 by the Midpoint Formula. The slope of Line segment DE is found to be 0 through the application of the slope formula: The difference of y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of the quantity 0 plus y sub 1, divided by 2, and the quantity 0 plus y sub 1, divided by 2, divided by the difference of the quantity x sub 1 plus x sub 2, divided by 2 and the quantity 0 plus x sub 1, divided by 2 is equal to 0 divided by the quantity x sub 2 divided by 2 is equal to 0 When the slope formula is applied to Line segment AC the difference between y sub 2 and y sub 1, divided by the difference of x sub 2 and x sub 1 is equal to the difference of 0 and 0, divided by the difference of x sub 2 and 0 is equal to 0 divided by x sub 2 is equal to 0, its slope is also 0. Since the slope of Line segment DE and Line segment AC are identical, Line segment DE and Line segment AC are parallel by the definition of parallel lines.

    • 2 years ago
  4. luisz Group Title
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    does that help at all?

    • 2 years ago
  5. luisz Group Title
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    http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/1001/1001_G4_Q12b.gif

    • 2 years ago
  6. luisz Group Title
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    hold up

    • 2 years ago
  7. luisz Group Title
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    • 2 years ago
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  11. luisz Group Title
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    helps any?

    • 2 years ago
  12. luisz Group Title
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    you guys there?

    • 2 years ago
  13. luisz Group Title
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    oh....

    • 2 years ago
  14. luisz Group Title
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    forgot

    • 2 years ago
  15. luisz Group Title
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    here are the answer choices...

    • 2 years ago
  16. luisz Group Title
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    What is the flaw in Gina’s proof? Points D and E must be constructed, not simply labeled, as midpoints. Segments DE and AC are parallel by construction. The slope of segments DE and AC is not 0. The coordinates of D and E were found using the Distance between Two Points Postulate

    • 2 years ago
  17. KingGeorge Group Title
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    Is it this question? http://assets.openstudy.com/updates/attachments/4fe3df92e4b06e92b872936f-yourmom14-1340333980899-georgeiiieiehjkdhkjs.jpg

    • 2 years ago
  18. luisz Group Title
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    where did you find that?

    • 2 years ago
  19. KingGeorge Group Title
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    It was a question I answered two days ago.

    • 2 years ago
  20. luisz Group Title
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    Did you find it on FLVS online?

    • 2 years ago
  21. luisz Group Title
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    I am a Florida Virtual School Student

    • 2 years ago
  22. luisz Group Title
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    so

    • 2 years ago
  23. luisz Group Title
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    can you help me out here?

    • 2 years ago
  24. KingGeorge Group Title
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    First off, which choices can we easily eliminate?

    • 2 years ago
  25. luisz Group Title
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    Choice three is erroneous

    • 2 years ago
  26. luisz Group Title
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    AC is 0

    • 2 years ago
  27. KingGeorge Group Title
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    Right, any others you can see are obviously wrong?

    • 2 years ago
  28. luisz Group Title
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    and the distance formula was never used, so we can eliminate 4

    • 2 years ago
  29. luisz Group Title
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    But there was a flaw in her work

    • 2 years ago
  30. luisz Group Title
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    I have a feeling that her flaw was in choice 1

    • 2 years ago
  31. KingGeorge Group Title
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    Right again. Now it's up to 1 or 2. Let's look at 1. Did Gina construct D and E, or did she label them?

    • 2 years ago
  32. luisz Group Title
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    Points D and E must be constructed, not simply labeled, as midpoints.

    • 2 years ago
  33. luisz Group Title
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    hmm

    • 2 years ago
  34. luisz Group Title
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    She only labeled them

    • 2 years ago
  35. luisz Group Title
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    she did not construct them

    • 2 years ago
  36. KingGeorge Group Title
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    Right. So the flaw is that she labeled them

    • 2 years ago
  37. luisz Group Title
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    k

    • 2 years ago
  38. luisz Group Title
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    by browser logged off automatically without my permission :(

    • 2 years ago
  39. luisz Group Title
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    i lost my answers

    • 2 years ago
  40. luisz Group Title
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    hold on

    • 2 years ago
  41. luisz Group Title
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    wait!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    • 2 years ago
  42. luisz Group Title
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    ;D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    • 2 years ago
  43. luisz Group Title
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    :D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    • 2 years ago
  44. luisz Group Title
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    I didn't lose them!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    • 2 years ago
  45. luisz Group Title
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    k!!!!!!!!!!!!!!!!

    • 2 years ago
  46. luisz Group Title
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    two more nasty suckers coming up

    • 2 years ago
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