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There is a page named "File:Ptolemy Pentagon.svg" on Wikipedia
DescriptionPtolemy Pentagon.svg English: Application of Ptolemy's theorem to the quadrilateral made by removing a vertex from a regular pentagon yields b/a...(526 × 526 (10 KB)) - 10:21, 15 September 2020
DescriptionPtolemy Pentagon2.svg English: Derivative of Ptolemy Pentagon.svg Date 16 October 2008 Source Dick Lyon Author N.L. Parker...(526 × 526 (13 KB)) - 03:53, 11 October 2020
DescriptionPtolemy Pentagon4.svg English: Square on the Pentagon chord equals square on decagon chord plus square on hexagon chord. Date 16th October...(526 × 526 (13 KB)) - 05:01, 13 April 2022
Decagon.jpg English: Find side of decagon Date 31st March 2008 Source modified Wikipedia image Author Neil Parker (talk) Other versions Ptolemy_Pentagon.svg...(783 × 1,023 (153 KB)) - 05:01, 13 April 2022
Pentagon Geometry Ptolemy.svg English: Ptolemy's Regular Pentagon construction Date 14 December 2013, 17:47:22 Source Own work Author Aldoaldoz SVG development...(635 × 507 (28 KB)) - 20:35, 13 July 2024
DescriptionMascheroni Pentagon (Ptolemy).svg Italiano: Mascheroni, Geometria del Compasso, Costruzione del Pentagono Regolare (Tolomeo) English: Mascheroni...(708 × 684 (8 KB)) - 22:22, 26 November 2022
DescriptionPtolemy Pentagon3.svg English: Calculating Pentagon chords Date 16th October 2008 Source Ptolemy Pentagon: Dick Lyon Author N.L. Parker Permission...(526 × 526 (12 KB)) - 05:01, 13 April 2022
DescriptionPtolemy Pentagon5.svg English: Graphic for article on Ptolemy's Theorem Date 31st October 2008 Source Adapted from the diagram illustrating...(526 × 526 (13 KB)) - 05:01, 13 April 2022
DescriptionPtolemy Pentagon6.svg English: Diagram used in determination of chord subtending sum of arcs Date 23rd November 2008 Source Theorema Quintum:...(526 × 526 (13 KB)) - 05:01, 13 April 2022
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