ETC1

X(73054) = X(4)X(54)∩X(185)X(72561) Barycentrics    (a^2+b^2-c^2)*(a^2-b^2+c^2)*(a^2*b^2-b^4+a^2*c^2+2*b^2*c^2-c^4)*(6*a^8-19*a^6*b^2+21*a^...

  • 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. ...