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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.)
re(2): eureka!!!!! part 2! (Sorry) | Comment 23 of 29 |
(In reply to re: eureka!!!!! part 2! (Sorry) by TomM)

>< damn... you're right TomM thanks for pointing that out.
i didnt think it all the way through i just assumed that cutting the line in three and puting lines to it made 3 same angles. i got the idea from friedlinguinis post that said something about using a ruler to cut the line in two equil parts to make 2 angles and just assumed that it would work for three with out doing the trig first
  Posted by James on 2002-10-26 15:07:01

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