Search All of the Math Forum:

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

Topic: Trying to find perimeter of a regular pentagon
Replies: 36   Last Post: May 31, 2013 9:26 PM

 Messages: [ Previous | Next ]
 JT Posts: 1,448 Registered: 4/7/12
Re: Trying to find perimeter of a regular pentagon
Posted: May 29, 2013 7:42 AM

On 29 Maj, 10:02, rich...@cogsci.ed.ac.uk (Richard Tobin) wrote:
>
> JT  <jonas.thornv...@gmail.com> wrote:

> >Because i will present a finite sum of fractions to represent the
> >edgelength to vertice line ratio? So you can all calculate exact, and
> >not by using approximations?

>
> The sum of rationals (fractions) is itself a rational.
>
> You cannot express the edge length of all regular polygons as a
>
> -- Richard

Usomg double up of vertices it is a peace of a cake expressiing raios
starting with 6 sided polygon (3)which really a multiple of 3. And the
other polygons will be expressed realising that taking the prime sided
polygon *3 will create a common vertex with the polygons built from
multipels of 3.

Date Subject Author
5/28/13 130bcd
5/28/13 JT
5/28/13 JT
5/28/13 Barry Schwarz
5/28/13 JT
5/28/13 JT
5/28/13 JT
5/28/13 JT
5/28/13 Ken.Pledger@vuw.ac.nz
5/28/13 JT
5/28/13 Ken.Pledger@vuw.ac.nz
5/28/13 David Bernier
5/28/13 Brian Q. Hutchings
5/28/13 JT
5/30/13 RGVickson@shaw.ca
5/31/13 Brian Q. Hutchings
5/31/13 JT
5/31/13 JT
5/31/13 JT
5/31/13 JT
5/31/13 JT
5/31/13 JT
5/31/13 Brian Q. Hutchings
5/28/13 JT
5/28/13 JT
5/28/13 Brian Q. Hutchings
5/28/13 JT
5/28/13 Brian Q. Hutchings
5/28/13 JT
5/29/13 Richard Tobin
5/29/13 JT
5/29/13 Richard Tobin
5/29/13 Brian Q. Hutchings
5/29/13 JT
5/29/13 Brian Q. Hutchings
5/30/13 Graham Cooper
5/30/13 RGVickson@shaw.ca