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Special triangle in any triangle (Posted on 2002-11-05) Difficulty: 5 of 5
Prove or disprove, that the points of intersection of the adjacent trisectors of the angles of any triangle are the vertices of an equilateral triangle. (In other words, that for any yellow triangle, the green triangle will be equilateral, given that the thinner lines trisect their respective angles.)

See The Solution Submitted by Dulanjana    
Rating: 4.0000 (8 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Good idea | Comment 3 of 20 |
(In reply to Good idea by Dulanjana)

Besides, I didn't want to feel like making that picture was a waste of time :)
  Posted by levik on 2002-11-05 03:57:53

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