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anonymous

  • one year ago

In the diagram below, AE = 12, EB = 6, and CE = 4. Find DE. 12 6 19 18

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  1. tkhunny
    • one year ago
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    There are theorems about ratios of such things. You must find them!

  2. anonymous
    • one year ago
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    i need help with the question . @tkhunny

  3. tkhunny
    • one year ago
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    Did you find the ratio theorems? http://www.cut-the-knot.org/proofs/IntersectingChordsTheorem.shtml

  4. anonymous
    • one year ago
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    still dont get it @tkhunny

  5. tkhunny
    • one year ago
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    Did you read the theorem? It provides three ratios. This WILL solve your problem.

  6. anonymous
    • one year ago
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    AP/CP = BP/DP = AB/CD. ?? @tkhunny

  7. tkhunny
    • one year ago
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    Very good. Now, the points are labeled differently. What are these same three ratios in terms of the points in your problem statement?

  8. anonymous
    • one year ago
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    idk how to cause like the shape shown in the example is different @tkhunny

  9. tkhunny
    • one year ago
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    The shape is the same. (Top Left)/(Center) = (Top Right)/(Center) What are the names of those points?

  10. anonymous
    • one year ago
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    A/E = D/E

  11. tkhunny
    • one year ago
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    Whoops! Now, I've confused you. I was talking about points and should have been talking about Line Segments. Let's try that exercise again. This time, what are the labels of the LINE SEGMENTS? (Top Left)/(Top Right) = (Bottom Left)/(Bottom Right)

  12. anonymous
    • one year ago
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    AE/DE=CE/BE ???

  13. tkhunny
    • one year ago
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    Perfect. Now, what information are you given? Look all the way up at the top of this thread.

  14. tkhunny
    • one year ago
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    EB is the same as BE

  15. anonymous
    • one year ago
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    12/x=4/6 ??

  16. tkhunny
    • one year ago
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    Super. Solve for x.

  17. anonymous
    • one year ago
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    18

  18. tkhunny
    • one year ago
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    You are done. Move on to the next one with a little more confidence.

  19. anonymous
    • one year ago
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    thank you!

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