## X(1147) (ISOGONAL CONJUGATE OF X(847))

 Interactive Applet

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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           (sin 4A)/sin A : (sin 4B)/sin B : (sin 4C)/sin C
Barycentrics    sin 4A : sin 4B : sin 4C

V. Thebault, "Sine-triple-angle-circle," Mathesis 65 (1956) 282-284. (Contributed by Edward Brisse, 3/4/02)

X(1147) lies on these lines:
2,54    3,49    4,110    5,578    24,52    26,206    30,156    55,1069    56,215    140,141    143,576    195,568    912,960

X(1147) = midpoint of X(3) and X(155)
X(1147) = isogonal conjugate of X(847)
X(1147) = complement of X(68)
X(1147) = X(54)-Ceva conjugate of X(3)
X(1147) = crosspoint of X(I) and X(J) for these (I,J): (2,317), (371,372)
X(1147) = crosssum of X(485) and X(486)

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