Math 2.0

Geometry Triangles and circles Concept

Orthocentric system

Summary

An orthocentric system is a set of four points of the plane. In it, one point is the orthocentre of the triangle formed by the other three. Then each of the four points is the orthocentre of the triangle formed by the other three. The four triangles share the same nine-point circle, and their circumcircles all have the same radius.

Further reading

  1. Web https://en.wikipedia.org/wiki/Orthocentric_system
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