X3756

X106com[INVERSE(n(HEXYL TRIANGLE))]

X3756 = centroid of (degenerate) pedal triangle of X106
< 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) { 88, 149 }: Central Line L(88, 149) { 11, 244 }: Central Line L(11, 244) { 106, 952 }: Central Line L(106, 952) { 8, 1120 }: Central Line L(8, 1120) { 1, 1145 }: Central Line L(1, 1145) { 2, 1280 }: Central Line L(2, 1280) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_88 = ISOGONAL CONJUGATE OF X(44) (1.0000, 0.0000) X_149 = REFLECTION OF X(20) IN X(104) (1.3265, -0.3333) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_244 = -LINE CONJUGATE OF X(100) (0.7857, 0.1166) X_106 = Λ(INCENTER, CENTROID) (1.0000, 0.0000) X_952 = INTERSECTION OF X(1)X(5) AND X(3)X(8) (0.1267, 0.6191) X_8 = NAGEL POINT (0.4694, 0.1333) X_1120 = -BLAIKIE TRANSFORM OF X(1) (1.2041, 0.2000) X_1 = INCENTER (0.5714, 0.2333) X_1145 = 3rd EHRMANN POINT (0.3061, 0.2999) X_2 = CENTROID (0.5374, 0.2000) X_1280 = ISOGONAL CONJUGATE OF X(1279) (1.1600, 0.1306) X_3756 = com[INVERSE(n(HEXYL TRIANGLE))] (0.8367, 0.1666) A B C X88 X149 X11 X244 X106 X952 X8 X1120 X1 X1145 X2 X1280 X3756 (a, b, c) = (5, 6, 7) | AB = 1

X3756 (X106com[INVERSE(n(HEXYL TRIANGLE))]) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Barycentrics: \(f(a,b,c) : f(b,c,a) : f(c,a,b)\), where \(f(a,b,c) = (3a - b - c)(b - c)^{2}\)
Search Value (6, 9, 13): \(-0.928012514996\)
▸ Linear Combinations1 combination
▸ Incident Central Lines10 lines

{1, 1145}, {2, 1280}, {8, 1120}, {11, 244}, {88, 149}, {106, 952}, {513, 1357}, {528, 1054}, {1015, 1146}, {1616, 1788}

▸ Functional Relations2 relations

Notes

Let La, Lb, Lc be the lines through A, B, C, resp. parallel to the Nagel line. Let Ma, Mb, Mc be the reflections of BC, CA, AB in La, Lb, Lc, resp. Let A' = Mb∩Mc, B' = Mc∩Ma, C' = Ma∩Mb. Triangle A'B'C' is inversely similar to, and 3 times the size of, ABC. Let A″B″C″ be the reflection of A'B'C' in the Nagel line. The triangle A″B″C″ is homothetic to ABC, with center of homothety X3756; see Hyacinthos #16741/16782, Sep 2008. (Randy Hutson, March 25, 2016)