## X(480) (X(200)-CEVA CONJUGATE OF X(220))

 Interactive Applet

You can move the points A, B and C (click on the point and drag it).
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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           (cot A/2 cos A/2)2 : (cot B/2 cos B/2)2 : (cot C/2 cos C/2)2
Barycentrics    (sin A)(cot A/2 cos A/2)2 : (sin B)(cot B/2 cos B/2)2 : (sin C)(cot C/2 cos C/2)2

The radical center of the three circles used to construct X(479). (Peter Yff, 5/6/98)

X(480) lies on these lines: 8,344    9,55    10,954    56,78    100,144

X(480) = isogonal conjugate of X(479)
X(480) = X(200)-Ceva conjugate of X(220)
X(480) = crosssum of X(269) and X(738)

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