This image was uploaded with an opaque background where it should have been transparent. If possible, please upload a PNG or SVG version of this image, derived from a non-JPEG source so that it has an alpha channel and no compression artifacts (or with existing artifacts removed). If it is not possible to obtain a cleaner version then consider creating a new, derivative, image with the background removed, while leaving this image alone; use templates such as {{Retouched picture}} and {{Derivative versions}} as appropriate; then ignore the rest of these requests. After doing so, please:
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.