Nagel point

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The point of intersection of the straight lines joining the vertices of a triangle to the points at which the opposite sides are tangent to the escribed circles (see Fig.).

This is named after Ch. Nagel (1836).

Figure: n066010a


[a1] N.A. Court, "College geometry" , Barnes & Noble (1952) pp. 160
[a2] M. Berger, "Geometry" , I , Springer (1987) pp. Sect. 10.13.30

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Nagel point. Encyclopedia of Mathematics. URL:
This article was adapted from an original article by A.B. Ivanov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article