File:Ptolemy Pentagon.svg
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Size of this PNG preview of this SVG file: 526 × 526 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,024 × 1,024 pixels | 2,048 × 2,048 pixels.
Original file (SVG file, nominally 526 × 526 pixels, file size: 10 KB)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:29, 16 February 2008 | 526 × 526 (10 KB) | wikimediacommons>Stotr | 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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