orthic triangle
1orthic — ˈȯrthik adjective Etymology: orth + ic : of or relating to the altitudes of a triangle …
2Altitude (triangle) — Orthocenter and Orthocentre redirect here. For the orthocentric system, see Orthocentric system. Three altitudes intersecting at the orthocenter In geometry, an altitude of a triangle is a straight line through a vertex and perpendicular to (i.e …
3Pedal triangle — In geometry, a pedal triangle is obtained by projecting a point onto the sides of a triangle.More specifically, consider a triangle ABC , and a point P that is not one of the vertices A, B, C . Drop perpendiculars from P to the three sides of the …
4Incircle and excircles of a triangle — A triangle (black) with incircle (blue), incentre (I), excircles (orange), excentres (JA,JB,JC), internal angle bisectors (red) and external angle bisectors (green) In geometry, the incircle or inscribed circle of a triangle is the largest circle …
5Orthocentric system — Orthocentric system. Notice any point is the orthocenter of the triangle formed by the other three. In geometry, an orthocentric system is a set of four points in the plane one of which is the orthocenter of the triangle formed by the other three …
6Johnson circles — In geometry, a set of Johnson circles comprise three circles of equal radius r sharing one common point of intersection H . In such a configuration the circles usually have a total of four intersections (points where at least two of them meet):… …
7Höhenfußpunktdreieck — Das Höhenfußpunktdreieck[1] (seltener: orthisches Dreieck) ist ein Begriff aus der Dreiecksgeometrie. Es entsteht dadurch, dass die Fußpunkte der drei Höhen (also die Punkte Ha, Hb und Hc, in denen die Lote von den Ecken des Dreiecks auf die… …
8GEOS circle — In geometry, the GEOS circle is derived from the intersection of four lines that are associated with a generalized triangle: the Euler line, the Soddy line, the orthic axis and the Gergonne line. Note that the Euler line is orthogonal to the… …
