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Topic: squaring a circle
Replies: 18   Last Post: Jan 3, 2012 12:22 PM

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Daniel W. Johnson

Posts: 433
Registered: 12/10/04
Re: squaring a circle
Posted: Dec 14, 2003 6:04 PM
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Russell Harper <> wrote:

> Just wondering, is it possible to create these tools using a compass and a
> straightedge (and maybe a pair of scissors)? /R

Well, one angle trisection requires a straightedge that you can mark; it
is then slid along a circle and line. (That not being one of the
operations described by Euclid, it has no impact on the proof of
impossibility.) I've also seen a drawing of an angle trisection device
with fairly simple moving parts.
Daniel W. Johnson
039 53 36 N / 086 11 55 W

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