X1268

ISOTOMIC CONJUGATE OF X1125

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 7, 12 }: Central Line L(7, 12) { 10, 86 }: Central Line L(10, 86) { 2, 594 }: Central Line L(2, 594) { 310, 313 }: Central Line L(310, 313) { 75, 1089 }: Central Line L(75, 1089) { 190, 1213 }: Central Line L(190, 1213) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_1125 = COMPLEMENT OF X(10) (0.5459, 0.2083) X_7 = GERGONNE POINT (0.5903, 0.2769) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_86 = CEVAPOINT OF INCENTER AND CENTROID (0.5534, 0.2171) X_2 = CENTROID (0.5374, 0.2000) X_594 = ISOGONAL CONJUGATE OF X(593) (0.5025, 0.1672) X_310 = ISOTOMIC CONJUGATE OF X(42) (0.4762, 0.1536) X_313 = ISOTOMIC CONJUGATE OF X(58) (0.4368, 0.1249) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_1089 = TRILINEAR SQUARE OF X(10) (0.4606, 0.1381) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_1213 = ISOGONAL CONJUGATE OF X(1171) (0.5294, 0.1914) X_1268 = ISOTOMIC CONJUGATE OF X(1125) (0.5286, 0.1917) A B C X1125 X7 X12 X10 X86 X2 X594 X310 X313 X75 X1089 X190 X1213 X1268 (a, b, c) = (5, 6, 7) | AB = 1

X1268 (ISOTOMIC CONJUGATE OF X1125) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Trilinears: \(1/(a^{2}f(a,b,c)) : 1/(b^{2}f(b,c,a)) : 1/(c^{2}f(c,a,b))\), where f(a,b,c) is as in X1125)
Search Value (6, 9, 13): \(2.870294405041\)
▸ Incident Central Lines7 lines

{2, 594}, {7, 12}, {10, 86}, {75, 1089}, {190, 1213}, {310, 313}, {333, 1171}

▸ Functional Relations6 relations

Notes

Let A22B22C22 be Gemini triangle 22. Let A' be the perspector of conic {{A, B, C,B22,C22}}, and define B' and C' cyclically. The lines AA', BB', CC' concur in X1268. (Randy Hutson, January 15, 2019)