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) = cos B cos C - sin(A + ω)
Barycentrics (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)The circle (X(4),2R) is identified at X(2474).
X(2545) lies on these lines:
2,1690 4,39 10,2017 20,1689 371,2546 372,2547 388,2007 497,2008 516,2018 1587,1671 1588,1670 2011,2542 2012,2543 2013,2550 2014,2551