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 (y + z) sec A : (z + x) sec B : (x + y) sec C, x : y : z = X(1210)
Barycentrics (y + z) tan A : (z + x) tan B : (x + y) tan C, x : y : z = X(1210)
X(1902) lies on these lines:
1,1037 4,8 10,235 19,220 25,40 33,64 125,429 225,1888 378,1385 392,475 427,946 515,1885 960,1861 1482,1597 1825,1859 1830,1887X(1902) = reflection of X(1829) in X(4)