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) is as given just before X(2979), using U = X(103)
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(2989) lies on these lines:
2,1331 7,1813 27,110 75,1332 273,651 1815,2400X(2989) = cevapoint of X(6) and X(516)
X(2989) = X(2424)-cross conjugate of X(927)