X313

ISOTOMIC CONJUGATE OF X58

< 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) { 10, 75 }: Central Line L(10, 75) { 71, 190 }: Central Line L(71, 190) { 42, 308 }: Central Line L(42, 308) { 92, 264 }: Central Line L(92, 264) { 12, 349 }: Central Line L(12, 349) { 80, 314 }: Central Line L(80, 314) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_58 = ISOGONAL CONJUGATE OF X(10) (0.6107, 0.2850) X_10 = SPIEKER CENTER (0.5204, 0.1833) X_75 = ISOTOMIC CONJUGATE OF INCENTER (0.4988, 0.1682) X_71 = ISOGONAL CONJUGATE OF X(27) (0.4807, 0.0915) X_190 = YFF PARABOLIC POINT (0.0748, 0.3999) X_42 = CROSSPOINT OF INCENTER AND SYMMEDIAN POINT (0.5880, 0.2495) X_308 = ISOTOMIC CONJUGATE OF X(39) (0.4915, 0.1700) X_92 = CEVAPOINT OF INCENTER AND CLAWSON POINT (0.5949, 0.3639) X_264 = ISOTOMIC CONJUGATE OF CIRCUMCENTER (0.5720, 0.3293) X_12 = {X(1),X(5)}-HARMONIC CONJUGATE OF X(11) (0.5641, 0.2407) X_349 = ISOTOMIC CONJUGATE OF X(284) (0.5089, 0.1906) X_80 = REFLECTION OF INCENTER IN FEUERBACH POINT (0.8980, -0.1000) X_314 = ISOTOMIC CONJUGATE OF X(65) (0.4457, 0.1206) X_313 = ISOTOMIC CONJUGATE OF X(58) (0.4368, 0.1249) A B C X58 X10 X75 X71 X190 X42 X308 X92 X264 X12 X349 X80 X314 X313 (a, b, c) = (5, 6, 7) | AB = 1

X313 (ISOTOMIC CONJUGATE OF X58) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Trilinears: \((b + c)b^{3}c^{3} : (c + a)c^{3}a^{3} : (a + b)a^{3}b^{3}\)
Barycentrics: \((b + c)b^{2}c^{2} : (c + a)c^{2}a^{2} : (a + b)a^{2}b^{2}\)
Search Value (6, 9, 13): \(5.158734620701\)
▸ Alternate Coordinates1 form
  • Trilinears: \((b + c)\csc(A - \omega ) : (c + a)\csc(B - \omega ) : (a + b)\csc(C - \omega )\)

▸ Incident Central Lines8 lines

{10, 75}, {12, 349}, {42, 308}, {71, 190}, {80, 314}, {92, 264}, {321, 594}, {561, 696}

▸ Functional Relations9 relations

Notes

Let A40B40C40 be Gemini triangle 40. Let A' be the center of conic {A, B, C,B40,C40}}, and define B' and C' cyclically. The lines AA', BB', CC' concur in X313. (Randy Hutson, January 15, 2019)