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Thread: 10x5 Challenge

  1. #1
    Associate Engineer
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    10x5 Challenge

    Can anyone solve this seemingly easy problem manually? NOT as easy as it appears. Or is it?


    I'm just curious to see if it can be worked manually.
    Attached Images Attached Images

  2. #2
    Principle Engineer
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    Pretty simple problem, but we don't do homework here.
    BTW, why would you need 6 place accuracy?

  3. #3
    Associate Engineer
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    It's part of the challenge and I have the answer (thanks to cheating with a CAD program). We are aiming for a star here.

    Can you at least give a run down of the formulas or techniques used to figure it manually? I've gotten that "it's simple" answer back before but never an explanation or shown-work as to how it is done. Trial and error works as does some CAD programs, but we looking for old-school work-it-out here.

    The first mistake people make is glancing at it quickly and incorrectly seeing X as being the hypotenuse of a simple right triangle with sides of 10 and 5. That is actually not the case.
    Last edited by V-18; 03-16-2013 at 07:00 AM.

  4. #4
    Associate Engineer
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    BTW, this isn't technically "homework" as for a school or anything. This is a little challenge problem that I developed myself. It came about through an accident and I'm just curious to see what's involved with it. I promise you that you can search every textbook and workbook on planet Earth and you will not find that problem.

  5. #5
    Administrator Kelly Bramble's Avatar
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    h^2 = x^2 + y^2, Pythagorean theorem and trigonometry. Solve for the small triangle first then one of the large triangle

  6. #6
    Principle Engineer
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    Ok, you twisted my arm

    TAN@=(5-COS@)/(10-SIN@)

    I trust you can do the res

  7. #7
    Principle Engineer
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    Well, did you solve it?

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