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Angle Trisection (Posted on 2002-06-19) Difficulty: 5 of 5
How can you divide an angle into 3 equal angles? You may only use a straightedge and a compass to achieve this.

(This means : You have an angle A, you divide Angle A into 3 Angles B,C,D. And B=C=D=A/3)

Note: vohonam clarified that the problem actually only gives you a straightedge, not a ruler.

See The Solution Submitted by vohonam    
Rating: 3.8889 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts Is it true... | Comment 3 of 28 |
I thought I have heard that the trisecting of an angle with compasses and ruler is impossible. Wasn't it one of the great puzzles man had in ancient times. (Or has modern man found it?)
  Posted by Dulanjana on 2002-06-19 15:30:37
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