Reddit Math Puzzle


So it’s not nonlinear math, but this made for a fun five minutes over Sunday morning coffee. There’s a number of ways of solving it, I went for the geometric one myself but the same answer comes out in the end for all of them, hopefully 🙂 And it’s nice to think you could still pass the Leaving Cert if you had to sit it again tomorrow, so hooray for Reddit.

Enjoy over coffee today! (My scribbled answer after the break…)


3.05572809 (or for those who like a more neat answer, 4(3-√5) )

2 thoughts on “Reddit Math Puzzle

  • Oct 13, 2009 at 2158

    Quadratic Equation? Bleh!
    Complete the square. You’ll end up with much less, uh, cruft.

  • Nov 13, 2009 at 1713

    is it odd that that was exactly the way I planned on solving?

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