Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math

Topic: Calculate angles, sides and areas for any regular polygon without
using trig functions and Pi

Replies: 9   Last Post: May 29, 2013 9:55 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Brian Q. Hutchings

Posts: 6,213
Registered: 12/6/04
constructable polyogona & polyhedra
Posted: May 29, 2013 9:55 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

sounds ill-posed. anyway,
a 30-gon is constructible with compasses, but
a 31-gon is not, according to Gauss's discovery
of "what the Fermat primes do. moreover,
they are a big subset of those that can
be constructed by paperfolding.

but, you don't want to get your hands dirty,
if all y'got is TP.

> Sorry not radians not degrees, and the edges will be expressed as
> ratios of the verice line so edge/vertice where the vertice is 1.




Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.