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.
Keywords from Image Description:
cell verf. cell vertex figure own original text created this work entirely by myself Tom Ruen talk Tomruen original upload log en Sreejithk CommonsHelper page en cellverf Tomruen bytes no cell vertex figure created this work entirely by myself Set of convex regular polytopes vertex figure Schlegel red