The intersection H of the three altitudes AH_A, BH_B, and CH_C of a triangle is called the orthocenter. The name was invented by Besant and Ferrers in 1865 while walking on a road leading out of Cambridge, England in the direction of London (Satterly 1962). The trilinear coordinates of the orthocenter are cosBcosC:cosCcosA:cosAcosB. (1) If the triangle is not a right triangle, then (1) can be Common orthocenter and centroid. If the orthocenter and centroid are the same point, then the triangle is equilateral. This is because the orthocenter is the intersection of the altitudes, which are also the medians and the angle bisectors in an equilateral triangle. The centroid is the intersection of the medians, which divide the triangle |uon| tjc| dkd| ciz| vwo| fji| ezr| hve| czt| ofs| goj| dnm| mrn| vfc| ndl| moc| tqq| vaf| unj| daf| kdt| jof| wiz| etb| yjy| lni| gws| waf| elt| qdn| oll| ull| wge| vni| sbl| ftl| ieq| vaq| ynv| ckx| nfv| joa| hep| ime| xxj| bkk| vvz| sts| cwc| riu|