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) = bc(ab +ac - 3bc)
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)Antreas Hatzipolakis described this point in Hyacinthos #3190 (7/13/2001). See also
Paul Yiu, Introduction to the Geometry of the Triangle, 2002, Section 3.3.1, exercise 2.
X(1278) lies on these lines: 2,37 8,726 145,740 193,742
X(1278) is the {X(75),X(192)}-harmonic conjugate of X(2). For a list of harmonic conjugates, click More at the top of this page.
X(1278) = reflection of X(192) in X(75)
X(1278) = anticomplement of X(192)