Any one of the eight Apollonius Circles of three given Circles is Tangent to a Circle , as are the other three Apollonius Circles having (1) like contact with two of the given Circles and (2) unlike contact with the third.

**References**

Johnson, R. A. *Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle.* Boston, MA:
Houghton Mifflin, pp. 127-128, 1929.

© 1996-9

1999-05-25