Thursday, October 28, 2010

Fox 311

A natural extension of Fox 3.
The claim may inspire purely-geometric solutions, but looks hard.

2 comments:

  1. http://geometri-problemleri.blogspot.com/2010/10/problem-94-ve-cozumu.html

    ReplyDelete
    Replies
    1. Reflect the upper part of the equilateral triangle about he middle parallel line.
      Then it is easy to see that the tangent of the two angles are in the ratio of (b+a)/(b-a)

      Delete