Interactive Applet |
You can move the points A, B and C (click on the point and drag it).
Press the keys “+” and “−” to zoom in or zoom out the visualization window and use the arrow keys to translate it.
You can also construct all centers related with this one (as described in ETC) using the “Run Macro Tool”. To do this, click on the icon, select the center name from the list and, then, click on the vertices A, B and C successively.
Information from Kimberling's Encyclopedia of Triangle Centers |
Trilinears f(A,B,C) : f(B,C,A) : f(C,A,B), where
f(A,B,C) = - (sin A)cos2(A/2) + (sin B)cos2(B/2) + (sin C)cos2(C/2)Barycentrics g(A,B,C) : g(B,C,A) : g(C,A,B), where g(A,B,C) = (sin A)f(A,B,C)
X(169) = X(32)-of-excentral triangle.
X(169) lies on these lines: 1,41 3,910 4,9 6,942 46,672 57,277 63,379 65,218 220,517 572,610
X(169) = X(85)-Ceva conjugate of X(1)
X(169) = crosssum of X(6) and X(1473)X(169) = X(I)-aleph conjugate of X(J) for these (I,J):
(2,165), (85,169), (86,572), (174,43), (188,170), (508,1), (514,1053), (664,101)