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File:Ptolemy Pentagon.svg

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Original file (SVG file, nominally 526 × 526 pixels, file size: 10 KB)

Summary

Description
English: Application of Ptolemy's theorem to the quadrilateral made by removing a vertex from a regular pentagon yields b/a = phi, the golden ratio. This drawing illustrates it.
Date Uploaded by en:User:Dicklyon to en.wikipedia in August 2006 (log).
Source Own work by en:User:Dicklyon
Author en:User:Dicklyon
Permission
(Reusing this file)
Public domain This work has been released into the public domain by its author, Dicklyon at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Dicklyon grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Date/TimeThumbnailDimensionsUserComment
current04:29, 16 February 2008Thumbnail for version as of 04:29, 16 February 2008526 × 526 (10 KB)StotrThis is a graphic by en:User:Dicklyon which shows an application of Ptolemy's theorem to the quadrilateral made by removing a vertex from a regular pentagon yields b/a = phi, the golden ratio. He released it into the public domain; see http://en.wiki

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Retrieved from "https://en.wikipedia.org/wiki/File:Ptolemy_Pentagon.svg"