All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 Special triangle in any triangle (Posted on 2002-11-05)
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.)

 Submitted by Dulanjana Rating: 4.0000 (8 votes) Solution: (Hide) This problem is actually known as "Moreley's Theorem". Charlie has pointed out that a proof is available here.

 Subject Author Date Solution Antonio 2003-09-01 04:22:23 re: Hey Charlie 2003-02-10 05:13:56 Special Triangle In Any Triangle Ravi Raja 2003-01-14 03:07:10 re: angle Z Rebecca 2002-12-02 10:34:16 Hey Raveen 2002-11-22 04:06:08 fixed math LDoc 2002-11-15 09:54:59 re(4): baa LDoc 2002-11-15 09:34:40 re(3): baa levik 2002-11-08 02:27:37 re(5): baa friedlinguini 2002-11-08 02:16:30 re(4): baa LDoc 2002-11-07 18:14:55 re(3): baa LDoc 2002-11-07 18:07:28 re(2): baa LDoc 2002-11-07 18:07:05 re: baa LDoc 2002-11-07 18:06:27 baa LDoc 2002-11-07 18:04:29 angle Z levik 2002-11-05 09:05:25 re(2): Live levik 2002-11-05 06:34:28 re: Live Jim Lyon 2002-11-05 05:25:59 re: Good idea levik 2002-11-05 03:57:53 Good idea Dulanjana 2002-11-05 02:39:41 Live levik 2002-11-05 02:03:45

 Search: Search body:
Forums (0)
Random Problem
Site Statistics
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox: