TOPICS
Search

Tangency Theorem


The external (internal) similarity point of two fixed circles is the point at which all the circles homogeneously (nonhomogeneously) tangent to the fixed circles have the same circle power and at which all the tangency secants intersect.


Explore with Wolfram|Alpha

References

Dörrie, H. 100 Great Problems of Elementary Mathematics: Their History and Solutions. New York: Dover, p. 157, 1965.

Referenced on Wolfram|Alpha

Tangency Theorem

Cite this as:

Weisstein, Eric W. "Tangency Theorem." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/TangencyTheorem.html

Subject classifications