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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(6): The next problem after this... | Comment 15 of 29 |
(In reply to re(5): The next problem after this... by Nick Reed)

this would make a great puzzle for April 1st. :)

searching online, I've found these two little tidbits:

1782^12 + 1841^12 = 1922^12   (it works out on the calculator)
3086^3 + 21588^3 = 21609^3 + 1 (ooh, so very close)

  Posted by Happy on 2002-06-20 11:18:32

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