File:Ptolemy Pentagon.svg
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Ptolemy_Pentagon.svg (SVG file, nominally 526 × 526 pixels, file size: 10 KB)
[edit] Summary
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.
This is a graphic uploaded by en:User:Dicklyon to en.wikipedia on 00:31, 29 August 2006. He released it into the public domain; see en:Image:Ptolemy_Pentagon.svg.
[edit] Licensing
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This image has been (or is hereby) released into the public domain by its author, Dicklyon at the English Wikipedia project. This applies worldwide. In case this is not legally possible: العربية | Català | Česky | Dansk | Deutsch | Ελληνικά | English | Eesti | Suomi | Français | עברית | Italiano | 한국어 | Lietuvių | Македонски | Plattdüütsch | Nederlands | Polski | Română | Русский | Српски / Srpski | Svenska | ไทย | Vèneto | 中文 | 中文(简体) | 中文(繁體) | +/− |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:29, 16 February 2008 | | 526×526 (10 KB) | Stotr (Talk | contribs) | (This 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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Global file usage
The following other wikis use this file:
- Usage of Ptolemy Pentagon.svg on cawiki
- Usage of Ptolemy Pentagon.svg on eswiki
