X135

INTERSECTION OF LINE X4X_131 AND X25X_114

X135 = X108-of-orthic-triangle if ABC is acute
< 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) { 4, 131 }: Central Line L(4, 131) { 25, 114 }: Central Line L(25, 114) { 52, 113 }: Central Line L(52, 113) { 119, 431 }: Central Line L(119, 431) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_4 = ORTHOCENTER (0.6122, 0.3958) X_131 = INTERSECTION OF LINES X(3)X(125) AND X(4)X(135) (0.3098, 0.1823) X_25 = HOMOTHETIC CENTER OF ORTHIC AND TANGENTIAL TRIANGLES (0.6329, 0.4497) X_114 = KIEPERT ANTIPODE (0.3616, 0.4140) X_52 = ORTHOCENTER OF ORTHIC TRIANGLE (0.7155, 0.4580) X_113 = JERABEK ANTIPODE (0.4319, 0.4718) X_119 = FEUERBACH ANTIPODE (0.3776, 0.4312) X_431 = EULER X(283)-5th-SUBSTITUTION POINT (0.6091, 0.3875) X_135 = INTERSECTION OF LINE X(4)X(131) AND X(25)X(114) (0.7014, 0.4587) A B C X4 X131 X25 X114 X52 X113 X119 X431 X135 (a, b, c) = (5, 6, 7) | AB = 1

X135 (INTERSECTION OF LINE X4X_131 AND X25X_114) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Trilinears: \((\sec A)[(\sin 2B)/(\sec 2C - \sec 2A) + (\sin 2C)/(\sec 2A - \sec 2B)] : :\)
Barycentrics: \((\tan A)[(\sin 2B)/(\sec 2C - \sec 2A) + (\sin 2C)/(\sec 2A - \sec 2B)] : :\)
Search Value (6, 9, 13): \(0.389229429446\)

X135 lies on the nine-point circle

▸ Incident Central Lines4 lines

{4, 131}, {25, 114}, {52, 113}, {119, 431}

▸ Functional Relations7 relations