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Topic: Req: Pentagon problem - help please !
Replies: 8   Last Post: Mar 12, 2004 7:15 PM

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 Mary Krimmel Posts: 629 Registered: 12/3/04
Re: Req: Pentagon problem - help please !
Posted: Mar 12, 2004 10:28 AM

At 08:02 PM 3/11/04 -0500, you wrote:
>could you explain how your construction works?i have to find the
>simplest way to construct a regular pentagon and yours seems to be the
>best, but i dont understand how to prove it.
>thanks

construction geometry-puzzles has described for you. I suggest that you
consult a search engine such as Google. The site below is titled
"Inscribing a regular pentagon in a circle - and proving it".

I do not see how to prove that a given construction algorithm is the
simplest. First, you need a clear basis for deciding how simple a
construction is, such as number of times you use a compass or a
straightedge. But being unable to find a simpler construction is no proof!

I suppose, however, that you only want to justify the construction you
propose, not to prove that it is the "best". If that's all you need, the

http://www.cut-the-knot.org/pythagoras/pentagon.shtml

Best wishes,
Mary Krimmel

Date Subject Author
8/4/98 DWill28107
8/5/98 Sarah Seastone
8/6/98 John Conway