INSTITUTO DE MATEMÁTICA
HJB --- GMA --- UFF

X(2777)
(ISOGONAL CONJUGATE OF X(2693))


Click here to access the list of all triangle centers.

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 Run Macro Tool, select the center name from the list and, then, click on the vertices A, B and C successively.

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Download all construction files and macros: tc.zip (10.1 Mb).
This applet was built with the free and multiplatform dynamic geometry software C.a.R..


Information from Kimberling's Encyclopedia of Triangle Centers

Trilinears            1/f(a,b,c) : 1/f(b,c,a) : 1/f(c,a,b), where f(a,b,c) is as at X(2693)
Barycentrics    a/f(a,b,c) : b/f(b,c,a) : c/f(c,a,b)

X(2777) lies on these lines:
3,113    4,74    5,1539    20,110    23,1533    30,511    64,265    112,1562    182,1177    185,1986    389,974    399,1498    468,1514    550,1511    858,1531    1316,1561    1352,2892    1568,2071

X(2777) = isogonal conjugate of X(2693)
X(2777) = crosspoint of X(4) and X(477)

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

If you have questions or suggestions, please, contact us using the e-mail presented here.

Departamento de Matemática Aplicada -- Instituto de Matemática -- Universidade Federal Fluminense



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