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Date
22 November 2011 (original upload date)
Source
Own work by the original uploader
Author
P.M.B. Vitanyi
Licensing
Public domainPublic domainfalsefalse
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.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.