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X(71995) = X(2)X(187)∩X(3)X(3734) Barycentrics    2*a^4 - 3*a^2*b^2 - 3*a^2*c^2 - 2*b^2*c^2 : : X(71995) = 3 X[2] + X[14907], 3 X[183]...

  • EUCLID 4404
  • ETC
    X(5459) Let ABC be a triangle, let A', B', C' be the midpoints of BC, CA, AB. Let L_a be the perpendicular through A' ...
  • 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 ...