## X(622) (ANTICOMPLEMENT OF X(16))

 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.

 The JRE (Java Runtime Environment) is not enabled in your browser!

This applet was built with the free and multiplatform dynamic geometry software C.a.R..

 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) = [sqr(3) SBSC - 2SA area]/a

Trilinears            F(16)/a - 2 sin(A - π/3) : F(16)/b - 2 sin(B - π/3) : F(16)/c - 2 sin(C - π/3)

Barycentrics    g(a,b,c) : g(b,c,a) : g(c,a,b), where g(a,b,c) = af(a,b,c)

X(622) lies on these lines: 2,13    3,303    4,69    5,302    14,532    20,628    30,299    183,1080    265,301    298,381    325,383    343,473    394,472

X(622) = reflection of X(I) in X(J) for these (I,J): (16,624), (617,299), (621,316)
X(622) = isotomic conjugate of X(2993)
X(622) = anticomplement of X(16)
X(622) = anticomplementary conjugate of X(617)
X(622) = X(301)-Ceva conjugate of X(2)

This is a joint work of
Humberto José Bortolossi, Lis Ingrid Roque Lopes Custódio and Suely Machado Meireles Dias.