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:
Apollonius point.svg The construction of the Apollonius point own Krishnachandranvn talk created this work entirely by myself May UTC Krishnachandranvn talk Krishnachandranvn en Cczero Original upload log en Dharmadhyaksha CommonsHelper en Apolloniuspoint svg Krishnachandranvn bytes no Image showing the construction