File:Academ Regular octagons.svg
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English: A polygon with eight sides is called an octagon. The yellow regular octagon is convex. It contains another regular octagon that is not convex: a regular star octagon. The black dashed segments are its shortest diagonals. They are also the sides of a third regular octagon with center T, this one is convex. Its dashed boundary is divided up by each side of the star octagon into 3 and 5 segments. So the star octagon is denoted by {8;3} in Schläfli notation. Convex regular octagons are denoted by {8;1}. Two regular octagons are similar if they are convex. Regular star octagons also are similar. |
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| Source | Own work |
| Author | Baelde |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:10, 1 April 2022 | | 600 × 600 (1 KB) | Curious Walrus (talk | contribs) | Reverted to version as of 16:39, 3 September 2012 (UTC) Reason: the compression does not affect the filesize and makes the file incompatible with Mediawiki's SVG rasterizer, altering the intended display. |
| 13:23, 26 March 2022 |  | 512 × 512 (1 KB) | TSamuel (talk | contribs) | Lossless recompression via SVGOMG & verified via SVGCheck | |
| 16:39, 3 September 2012 |  | 600 × 600 (1 KB) | Baelde (talk | contribs) | {{Information |Description ={{en|1=A polygon with eight sides is called an octagon. The yellow regular octagon is convex. It contains another regular octagon that is not convex: a regular star octagon. The black dashed segments are i... |
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