ETC1

X(73038) = X(4)X(54)∩X(5)X(13467) Barycentrics    (-(a^2*b^2)+b^4-a^2*c^2-2*b^2*c^2+c^4)*(2*a^12-6*a^10*b^2+4*a^8*b^4+4*a^6*b^6-6*a^4*b^8+...

  • EUCLID 4404
  • HOMOTHETIC TRIANGLES and EULER LINES
    Theorem 1. Let ABC be an equilateral triangle and P a point. The Euler lines of the triangles PBC,PCA,PAB are concurent.Denote the point ...
  • ANOPOLIS CIRCLE
    Let ABC be a triangle. Denote: (N1),(N2), (N3) = the NPCs of IBC, ICA, IAB, resp. (12), (13) = the reflections of (N1) in BI, CI, resp. ...