@options;
  repereortho(242,328.95,44,1,1){ 0 , moyen , noir , num1 };

@figure;
  O = point( 0 , 0 )  { croix3 , fixe , car+3 };
  P = point( 0 , 2 )  { croix3 , fixe , car+3 };
  A = point( 2 , 6 )  { croix3 , fixe , car+3 };
  B = point( 4 , 0 )  { croix3 , fixe , car+3 };
  C = point( -3.5 , 0 )  { croix3 , fixe , car+3 };
  dBC = droite( B , C );
  Mx = pointsur( dBC , -0.19 )  { croix3 , car+3 };
  dMxP = droite( Mx , P )  { violetfonce };
  sAB = segment( A , B )  { 3 };
  sAC = segment( A , C )  { 3 };
  sCB = segment( C , B )  { 3 };
  N = intersection( sAB , dMxP )  { vert };
  N' = intersection( sAC , dMxP )  { vert };

@analyse;
aire(AN'N) = 11.94
aire(CN'NB) = 10.56
aire(CMxNA) = 22.94
aire(MxNB) = 0.44
aire(CN'Mx) = 11
MxO = 5.45