This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Wheelgraphs. Wheel graphs en David Eppstein en Wheel graphs svg David Eppstein Original upload log en Wheelgraphs bytes David Eppstein no graphs Wheel graphs
Page 2023 Free-images.com. All images are Public Domain