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.
(Diagram of a <a href="/wiki/Circle" title="Circle">circle</a>. This is a <a href="/wiki/Vector_graphics" title="Vector graphics">vector graphic</a> version of <a href="/wiki/Image:Circle-1.png" title="Image:Circle-1.png">Image:Circle-1.png</a> which was licensed under the <a href="/wiki/GNU_Free_Documentation_License" title="GNU Free Documentation License">GFDL</a>.)
Original upload log
Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version.
Click on date to download the file or see the image uploaded on that date.