# geometry problem

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

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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

3. ### 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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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?

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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...

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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.