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) = 2 cos(B - C) - cos A + cos B + cos C - 1
Barycentrics (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)
X(1699) lies on these lines:
1,4 2,165 5,40 10,962 11,57 12,1697 20,1125 36,1012 55,1538 79,84 80,1537 115,1572 118,1282 200,908 210,381 238,1754 354,971 355,546 382,1385 485,1702 486,1703 499,1770 610,1839 614,990 1329,1706 1348,1704 1506,1571 1676,1700 1677,1701 1730,1985 2009,2017 2010,2018X(1699) = reflection of X(165) in X(2)
X(1699) = crosspoint of X(92) and X(1088)
X(1699) = crosssum of X(48) and X(1253)