image is a derivative work of the following images: File:Apollonius_annulus_no_eqs_black.svg licensed with Cc-by-sa-3.0, GFDL 2008-08-18T18:08:28Z WillowW...
DescriptionApollonius annulus no eqs black.svg English: Alternative version of Image:Apollonius_annulus.svg, with the given circles shown in black, as suggested...