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geometry problem

Discussion in 'DAT Discussions' started by Greensalad, May 8, 2007.

  1. Greensalad

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    from topscore, "chords AB and CD of circle O intersect at E. If AE=4, AB=5, CE=2, find ED"

    What is this picture supposed to look like???

    topscore didn't draw it out, it just said make the lines touch the circle
     
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  3. Law0830

    Law0830 Junior Member

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    well you should obvioiusly have a circle and a chord is a line that runs inside the circle but does not pass the center of the circle. SO all you have are two chords of different length intersecting each other.
     
  4. DentalKitty

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    Is the answer ED=2?
     
  5. Greensalad

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    OBVIOUSLY...topscore says "draw a circle with center O. Draw an X above the circle connecting either side of the circle." what the hell is that? someone draw it out for me?
     
  6. Greensalad

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    that is correct and would be the case if the the lines were inside the circle, but topscore's solution says the lines intersect outside of the circle!
     
  7. DentalKitty

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    Wow, that's weird. Wouldn't lines outside the circle be tangents vice chords? I think that may be what they are referring to, 2 tangents that cross outside the circle...
     
  8. DentalKitty

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    FYI, I just solved it using similar triangles AEC and BED...
     
  9. Greensalad

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    By using the tangent chord diagram where neither of the chords are inside the circle?
     
  10. DentalKitty

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    No, I used the chords inside the circle, sorry.
     
  11. Greensalad

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    This problem is so vague if what I'm about to say is true: the tangent lines end ONCE they touch the circle. Topscore sucks. Agree?
     

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