Ex Cathedra

The truth will set you free, but first it’ll piss you off

13 May

ACircle Puzzle

I found this on somebody’s blog. I promise I’ll com back and give full and proper credit to the kind person who originally posted it. I named the puzzle revenge.html because I was graduating from outpatient speech therapy, so I gave it to Sue, Mandy, and Rose Marie, who’d been my torturers since I’d entered HealthSouth. I don’t know if they solved it, but it’s certainly fiendish enough.

10 Responses to “ACircle Puzzle”

  1. 1
    Ted Goas Says:

    Ahh, brings me back to high school math class. I’ll have to give this one a go on my lunch break!

  2. 2
    tim Says:

    Clever puzzle. I got the answer. (Don’t want to spoil it here till everyone else has had a try.)

  3. 3
    Rev. Bob Says:

    OK, two hints, not quite broad enough to be spoilers.

    (1) Amber Rhea has a blog I admire (it’s on my blogroll). She just did her recital for her pole dancing class.

    (2) The part of my brain that’s able to do what’s needed to solve this was supposed to be fuxx0red by the stroke, but it apparently works fine.

    The next hint will be even broader, so you’d better solve it now.

  4. 4
    tim Says:

    You want hints? Here’s a hint:

    Even I get how this is solved, I think.

  5. 5
    Rev. Bob Says:

    Tim, you’re such a square. Kind of.

  6. 6
    Ted Goas Says:

    I think I got it (with some help), but don’t want to post here yet and spoil the fun…

  7. 7
    tim Says:

    I had another clue in mind, but now you’ve wrecked that angle.

  8. 8
    Rev. Bob Says:

    Sorry, Tim.

    Brilliant!

    My last hint is an anagram of your name.

  9. 9
    Cherish Says:

    Is this as easy as I think it is?

  10. 10
    Rev. Bob Says:

    O Hai,

    The anagram of Tim’s name: TMI. Not only was there too much information, most of it leads you down the wrong path.

    First solution: construct Amber’s pole a little to the left of the “8″ and parallel to the Y axis. Swing the triangle around that pole. The part of my brain I thought was broken was the part that lets you visualize in 3D. Seems to be OK now. Elapsed time: 1 second.

    Since it can’t be that easy, label the points on the triangle A, B, and C, starting from the bottom right corner. Label the center of the circle D. What kind of figure is ABCD? The hint about complementary angles in the original page turns out not to be deceptive.

    What do we know about the diagonals of a rectangle?

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