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First Yff Circles Triangle


The following table gives the centers of the first Yff circles triangle in terms of the centers of the reference triangle for Kimberling centers X_n with n<=100.

X_ncenter of first Yff circles triangleX_ncenter of reference triangle
X_1incenterX_1incenter
X_3circumcenterX_(55)internal similitude center of circumcircle and incircle
X_4orthocenterX_(1478)center of the first Johnson-Yff circle
X_5nine-point centerX_(495)Johnson midpoint
X_6symmedian pointX_(611)intersection of lines X_1X_6 and X_(55)X_(511)
X_(84)isogonal conjugate of X_(40)X_(1709)Mimosa transform of X_9

See also

Second Yff Circles Triangle, Yff Circles

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Cite this as:

Weisstein, Eric W. "First Yff Circles Triangle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/FirstYffCirclesTriangle.html