Hierdie lêer kom vanaf Wikimedia Commons en kan ook in ander projekte gebruik word.
Die beskrywing op die lêer se inligtingsblad word hieronder weergegee.
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.
Oorspronklike oplaailogboek
The original description page was here. All following user names refer to en.wikipedia.