This image was uploadedas GIF, while a different format would have been more suitable. Commons discourages the use of GIF files, except for animations. See Commons:File types for more information. If possible, please upload a PNG version (or JPEG for some photos) of this image, and mark the GIF image as {{Superseded|‹new image name›}}. If you like, encourage other Wikimedia projects using the GIF to use the new version instead. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadGIF}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadGIF}}.
This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.