X3068¶
INTERSECTION OF X2X_6 AND X4X_371
X3068 (INTERSECTION OF X2X_6 AND X4X_371) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Derived Triangle: Medial Triangle △MaMbMc — vertices Ma, Mb, Mc (Formed by the midpoints of sides BC, CA, AB)
Central Lines: {2, 1270}
Related Centers: X2 (CENTROID), X1270 (ISOTOMIC CONJUGATE OF X1131)
Alternate Coordinates4 forms
Trilinears: \((S + a^{2})/a : :\)
Trilinears: \(\cos A + \sin A + \cos B \cos C : :\)
Barycentrics: \(a^{2} + S : :\)
Barycentrics: \(S_{B} + S_{C} + S : :\)
Incident Central Lines341 lines
{1, 1336}, {2, 6}, {3, 1587}, {4, 371}, {5, 1588}, {8, 7969}, {9, 5393}, {10, 13893}, {11, 13895}, {12, 13896}, {13, 13917}, {14, 13916}, {17, 22921}, {18, 22876}, {19, 1659}, {20, 1151}, {24, 8276}, {25, 13884}, {30, 6221}, {32, 638}, {39, 8963}, {40, 13912}, {53, 19410}, {54, 8995}, {55, 13887}, {56, 18965}, {64, 8991}, {68, 13909}, {74, 8994}, {76, 8992}, {79, 16148}, {80, 8988}, {83, 5491}, {84, 8987}, {98, 8980}, {99, 8997}, {100, 13922}, {104, 13913}, {110, 8998}, {112, 13923}, {113, 19060}, {114, 19056}, {115, 19109}, {119, 19082}, {125, 19111}, {127, 19115}, {132, 19094}, {140, 3312}, {148, 13657}, {171, 606}, {184, 18924}, {186, 9682}, {214, 19078}, {216, 1590}, {238, 605}, {239, 1267}, {262, 22720}, {265, 13915}, {372, 631}, {376, 6200}, {381, 6199}, {382, 23253}, {387, 2047}, {388, 2067}, {393, 493}, {402, 13894}, {427, 5410}, {468, 5411}, {486, 3090}, {487, 5286}, {488, 6423}, {489, 5254}, {490, 3053}, {494, 13900}, {497, 2066}, {498, 3301}, {499, 3299}, {511, 22717}, {515, 9583}, {516, 9616}, {530, 13646}, {531, 13645}, {532, 22918}, {533, 22873}, {538, 13647}, {542, 13640}, {543, 13642}, {546, 23263}, {548, 6455}, {549, 6398}, {550, 6449}, {571, 13439}, {577, 1589}, {588, 2165}, {618, 19074}, {619, 19076}, {620, 19108}, {629, 19070}, {630, 19072}, {632, 6428}, {637, 1504}, {640, 7375}, {641, 13771}, {642, 19105}, {671, 13908}, {754, 13648}, {894, 5391}, {920, 1123}, {946, 1702}, {958, 19014}, {1001, 18999}, {1030, 21566}, {1033, 15210}, {1075, 8954}, {1078, 18993}, {1124, 3086}, {1125, 13959}, {1131, 3146}, {1132, 3590}, {1147, 19062}, {1152, 3523}, {1181, 6807}, {1209, 19096}, {1249, 3535}, {1297, 13918}, {1327, 13920}, {1328, 13848}, {1335, 3085}, {1370, 11417}, {1376, 19000}, {1378, 19843}, {1449, 5405}, {1503, 7374}, {1511, 19052}, {1579, 7400}, {1583, 8573}, {1586, 3087}, {1599, 1609}, {1650, 19018}, {1656, 6417}, {1657, 6407}, {1698, 13936}, {1703, 6684}, {1788, 2362}, {1899, 18923}, {2043, 5335}, {2044, 5334}, {2271, 21909}, {2482, 19058}, {2548, 5058}, {2550, 5415}, {2883, 19088}, {3035, 19112}, {3071, 3091}, {3074, 3077}, {3075, 3076}, {3083, 3554}, {3084, 3553}, {3088, 3093}, {3089, 3092}, {3096, 19012}, {3103, 12251}, {3147, 10881}, {3183, 22838}, {3186, 8956}, {3297, 14986}, {3317, 10195}, {3462, 8955}, {3485, 16232}, {3522, 6409}, {3524, 6396}, {3525, 5420}, {3526, 6418}, {3528, 9680}, {3529, 6453}, {3530, 6450}, {3534, 6445}, {3543, 6437}, {3545, 6565}, {3594, 10303}, {3616, 7968}, {3624, 13971}, {3627, 6447}, {3628, 6427}, {3634, 13947}, {3647, 19080}, {3832, 23261}, {3855, 23275}, {3934, 19089}, {4254, 16433}, {4296, 9634}, {4297, 9615}, {4423, 13940}, {5020, 19005}, {5021, 21992}, {5054, 6395}, {5055, 18510}, {5056, 6431}, {5059, 6429}, {5067, 10577}, {5070, 6500}, {5120, 16432}, {5124, 21567}, {5200, 10132}, {5218, 5414}, {5305, 11313}, {5409, 6805}, {5413, 6353}, {5432, 19037}, {5433, 18995}, {5449, 19061}, {5461, 19057}, {5480, 7000}, {5552, 19048}, {5597, 13890}, {5598, 13891}, {5599, 19008}, {5600, 19010}, {5889, 12239}, {5972, 19110}, {6036, 19055}, {6118, 19102}, {6119, 19104}, {6193, 8909}, {6202, 8396}, {6260, 19068}, {6292, 19092}, {6302, 9112}, {6303, 9113}, {6392, 6462}, {6410, 15717}, {6411, 10304}, {6412, 15692}, {6424, 7388}, {6438, 15708}, {6446, 15693}, {6448, 12108}, {6451, 8703}, {6452, 12100}, {6456, 15712}, {6468, 15683}, {6480, 11001}, {6481, 15719}, {6501, 13961}, {6502, 7288}, {6519, 15704}, {6643, 10897}, {6669, 19073}, {6670, 19075}, {6673, 19071}, {6674, 19069}, {6689, 19095}, {6696, 19087}, {6699, 19059}, {6701, 19079}, {6702, 19077}, {6704, 19091}, {6705, 19067}, {6713, 19081}, {6720, 19114}, {6776, 6811}, {6808, 10982}, {6813, 14853}, {7160, 13914}, {7386, 11513}, {7392, 10961}, {7493, 11418}, {7494, 11514}, {7615, 13660}, {7737, 9675}, {7738, 11293}, {7815, 13938}, {7846, 19011}, {8222, 19032}, {8223, 19034}, {8280, 8889}, {8383, 19219}, {8882, 16032}, {9648, 15338}, {9663, 15326}, {9681, 22644}, {9683, 12088}, {9686, 13346}, {9690, 15681}, {9691, 17800}, {9694, 11413}, {9695, 12082}, {9722, 15234}, {9732, 21737}, {9780, 13973}, {9862, 13674}, {10192, 17820}, {10198, 13965}, {10200, 13964}, {10266, 13919}, {10527, 19050}, {10533, 11206}, {10665, 11411}, {10819, 12383}, {11265, 14790}, {11284, 13943}, {11294, 12323}, {11442, 11447}, {11457, 11462}, {11485, 18585}, {11486, 15765}, {11542, 18587}, {11543, 18586}, {12221, 13881}, {12240, 15043}, {12317, 12375}, {12318, 12424}, {12319, 12891}, {12320, 12960}, {12321, 12961}, {12322, 12962}, {12324, 12964}, {12325, 12965}, {12376, 20125}, {12864, 19086}, {13025, 13045}, {13026, 13046}, {13089, 19098}, {13203, 13287}, {13650, 13711}, {13662, 13720}, {13701, 22541}, {13774, 15118}, {13821, 19100}, {13832, 13833}, {15183, 19017}, {15722, 17851}, {15819, 19064}, {18457, 18531}, {19051, 20304}, {19084, 22966}, {19174, 19183}, {19420, 19436}, {19421, 19438}, {22466, 22976}, {22555, 22960}
Functional Relations10 relations
X3068 = isogonal conjugate of X493
X3068 = Xi-Ceva conjugate of Xj for these (i,j): (393, 3069), (1585, 4)
X3068 = crosspoint of X2 and X1131
X3068 = orthologic center of these triangles: 1st tri-squares to outer-Vecten
X3068 = homothetic center of ABC and 3rd tri-squares central triangle
Notes¶
X3068: Let A'B'C' be the outer Vecten triangle. Let A″ be the trilinear pole of line B'C', and define B″, C″ cyclically. The lines AA″, BB″, CC″ concur in X3068. (Randy Hutson, July 21, 2017)