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

X(1861)
(ZOSMA TRANSFORM OF X(238))


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           (y + z) sec A : (z + x) sec B : (x + y) sec C,    x : y : z = X(238)
Barycentrics    (y + z) tan A : (z + x) tan B : (x + y) tan C,    x : y : z = X(238)

X(1861) lies on these lines:
1,475    2,33    4,9    5,1872    8,34    12,1887    25,1376    75,225    208,1788    232,1575    235,1329    240,522    378,993    406,1698    427,1824    429,1900    468,1862    518,1876    519,1870    594,1841    765,1877    908,1830    958,1593    960,1902    1528,1532    1595,1871    1829,1883

X(1861) = complement of X(3100)

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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