HJB --- GMA --- UFF


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: (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            a/f(a,b,c) : b/f(b,c,a) : c/f(c,a,b), where f(a,b,c) is as in X(1036)
Barycentrics    a2/f(a,b,c) : b2/f(b,c,a): c2/f(c,a,b)

X(2285) lies on these lines:
1,572    2,7    6,19    32,1950    37,56    40,2269    41,610    46,573    169,1046    194,2128    198,1466    208,429    380,2280    388,2345    583,1732    612,1460    851,2092    966,1788    968,1011    1038,2303    1041,1172    1100,2099    1182,2252    1404,1449    1454,2245    1470,2178    1475,2257    1903,2213    2197,2276    2199,2312    2267,2294    2270,2347

X(2285) = isogonal conjugate of X(2339)
X(2285) = X(I)-Ceva conjugate of X(J) for these I,J: 388,612    2303,2286
X(2285) = crosssum of X(9) and X(1697)

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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