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 (b + c)(b + c - a) : (c + a)(c + a - b) : (a + b)(a + b - c)
Barycentrics a(b + c)(b + c - a) : b(c + a)(c + a - b) : c(a + b)(a + b - c)
X(210) lies on these lines:
2,354 6,612 8,312 9,55 10,12 31,44 33,220 37,42 38,899 43,984 45,968 51,374 56,936 63,1004 78,958 165,971 201,227 213,762 381,517 392,519 430,594 869,1107 956,997 976,1104X(210) = X(2)-of-extouch triangle, so that X(210)X(1158) = Euler line of the extouch triangle
X(210) = reflection of X(I) in X(J) for these (I,J): (51,375), (354,2)
X(210) = isogonal conjugate of X(1014)
X(210) = X(10)-Ceva conjugate of X(37)
X(210) = crosspoint of X(8) and X(9)
X(210) = crosssum of X(I) and X(J) for these (I,J): (56,57), (58,1412)
X(210) = crossdifference of any two points on line X(1019)X(1429)
X(210) = X(I)-beth conjugate of X(J) for these (I,J): (200,210), (210,42)