## X(1841) (ZOSMA TRANSFORM OF X(71))

 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.

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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(71)
Barycentrics    (y + z) tan A : (z + x) tan B : (x + y) tan C,    x : y : z = X(71)

X(1841) lies on these lines:
4,37    6,19    28,1104    53,225    71,1888    216,1465    241,273    278,393    281,475    427,1826    442,1838    581,1871    594,1861    1100,1172    1119,1418    1400,1875    1839,1852

X(1841) = X(1838)-Ceva conjugate of X(1859)
X(1841) = crosspoint of X(28) and X(278)
X(1841) = crosssum of X(72) and X(219)

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