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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.)
Reference | Comment 27 of 28 |
http://mathforum.org/dr.math/faq/faq.impossible.construct.html

  Posted by Richard on 2005-05-30 02:43:40
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