Rigby Points
The Perspective Centers of the Tangential and Contact Triangles of theinner and outer Soddy Points. The Rigby points are given by
where
is the Incenter and Ge is the Gergonne Point.See also Contact Triangle, Gergonne Point,Griffiths Points, Incenter, Oldknow Points, Soddy Points, Tangential Triangle
References
Oldknow, A. ``The Euler-Gergonne-Soddy Triangle of a Triangle.'' Amer. Math. Monthly 103, 319-329, 1996.
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