Outer Soddy Center

The outer Soddy center (or outer Soddy point) is the center of the outer Soddy circle. It is equivalent to the isoperimetric point X_(176) (Kimberling 1994) and has equivalent triangle center functions


where R is the circumradius of the reference triangle.

It lies on the Soddy line.

See also

Inner Soddy Center, Outer Soddy Circle, Soddy Circles

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Kimberling, C. "Central Points and Central Lines in the Plane of a Triangle." Math. Mag. 67, 163-187, 1994.

Referenced on Wolfram|Alpha

Outer Soddy Center

Cite this as:

Weisstein, Eric W. "Outer Soddy Center." From MathWorld--A Wolfram Web Resource.

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