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noobsaibot

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Posts posted by noobsaibot

  1. imatfaal, i finally got it! Thanks for diagram, it was very helpful.

    My result

    Screen_Shot_2014_10_29_at_15_39_02.jpg


    anastasia, thanks for you response.

     

    I am try solve similar puzzle. It very similar to previous, but i cant understand how to solve it.

     

    Source:

    zad.jpg

    Excepted result:

    finish.jpg

     

    BTW, i found this puzzle at http://geometricpuzzle.jff.name/ . I hope i dont break forum rules, when post external link, in another case i will remove link asap.

  2. elfmotat,

    Sorry for my bad description, imatfaal described very well above .

     

    imatfaal, thanks for response.

    I tried implement your solution but dont receive excepted result. I think i dont fully understand your naming.

     

    My naming: point A - center of Circle A and point B - circle of point B.

    I will show screenshots for each step(sorry for point names, it generates automatically and sometimes game overlay another points)

     

    1. Connect centres designated O and P

     

    image.jpg

    2. Mark from M (intersection of Circle A with OP) the length of the radius of B to create N

     

    image.jpg

    3. Construct new circle Circle C concentric with A with radius ON

    image.jpg

    4. Using arbitrary Arcs create perpendicular bisector of OP - this crosses OP at point S

     

    image.jpg

    5. Set Compass to radius OS.

    6. Mark circle A with intersection of Arcs with centre S and radius OS. Call these points T and T2

     

    image.jpg

    7. Join P (centre of Circle B) with Point T . This is necessarily tangent to Circle C

     

    image.jpg

    8. Construct line from O to T. This is radius of both Circle A and Circle C.

    9. Where this line intersects Circle A mark point V

     

    image.jpg

    10. Construct line Parallel to TP which passes through V

     

    image.jpg

  3. Common rules for this geometric teasers.

    There is an initial figure (eg a circle), and there is something that should be at the end (such as a triangle in the circle). To solve the puzzles, you can only use a ruler and compass, respectively, you can build segments, circles and copy it. Nothing else

    There are many teasers such this, but this was very difficult for me.


    You should construct a tangent simultaneously to two circles so that in one circumferential line touching the top, and a second at the bottom. Please see pictures.

    Original:

    Screen_Shot_2014_10_28_at_23_17_23.jpg

    Required result:

    Screen_Shot_2014_10_28_at_23_17_09.jpg

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