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Construct a Pentagram (Posted on 2003-09-22) Difficulty: 2 of 5
I have a strip of paper with parallel sides, a pencil and a straight edge. How can I construct a regular pentagram (star) with these? And for that matter, a pentagon? Well ... the pentagon is the proper way to go.

See The Solution Submitted by brianjn    
Rating: 2.3333 (3 votes)

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Question re: A trick | Comment 5 of 12 |
(In reply to A trick by Brian Smith)


Is this the solution intended? If not, please advise that you are interested in a solution that does not require folding (or some other useful constraint).

--- SK

P.S. Brian Smith, where'd you first observe this "trick", and in what context?

P.P.S. And all, who wishes to 'prove' that the method works, and that the only requirement is that a particular ratio (the one found by fwaff, here, is met?
  Posted by SilverKnight on 2003-09-22 16:36:27

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