@options;

@figure;
  gogeometry = texte( -5.5 , -6.1 ,"Antonio Gutierrez.     www.gogeometry.com")  { rougefonce , dec1 , car-3 };
  click = texte( -5.5 , -5.7 ,"Click this button to start/stop the animation")  { rougefonce , dec2 , car-3 };
  N2an = point( -2.51 , 1.28 )  { i };
  N1an = point( -4.81 , 1.39 )  { i };
  ceN2N1 = cercle( N2an , N1an )  { i };
  xx = reel( 353.5 , 0 , 360 , 2.5 )  { oscille , (7.67,-8) , i };
  var yy = 180*cos(xx)+150 { 328.842934021786 };
  d13 = droite( 1 , 3 )  { stop , noir , 3 , sansnom };
  1 = pointsur( ceN2N1 , yy )  { stop , rond2 , (-0.37,-0.94) };
  2 = pointsur( d13 , 0.41 )  { stop , rond3 , (-0.35,-0.91) };
  3 = point( 5.45 , 1.14 )  { stop , rond3 , (-0.31,-0.87) };
  G3 = point( 1.83 , 4.45 )  { (-0.45,-0.49) , i };
  sP3G3 = segment( 2 , G3 )  { grisclair };
  Pt3 = texte( G3 ,"1,2,3 on a line")  { stop , vertfonce , (-0.84,-0.73) , dec2 , car-3 };
  d45 = droite( 4 , 5 )  { stop , noir , 3 , sansnom };
  4 = point( -2 , -4 )  { stop , rond3 , (-0.31,-0.02) };
  5 = point( 1.72 , -4 )  { stop , rond3 , (-0.17,0.04) };
  6 = pointsur( d45 , 2.07 )  { stop , rond3 , (-0.14,0.07) };
  G4 = point( 1.83 , -5 )  { (-0.45,-0.87) , i };
  s5G4 = segment( 5 , G4 )  { grisclair };
  Pt4 = texte( G4 ,"4,5,6 on a line")  { stop , vertfonce , (-0.63,0.05) , dec2 , car-3 };
  d15 = droite( 1 , 5 )  { stop , vertfonce , sansnom };
  d24 = droite( 2 , 4 )  { stop , vertfonce , sansnom };
  A = intersection( d15 , d24 )  { stop , rouge , 3 , rond3 , (-0.28,-0.95) };
  d16 = droite( 1 , 6 )  { stop , vertfonce , sansnom };
  d34 = droite( 3 , 4 )  { stop , vertfonce , sansnom };
  B = intersection( d34 , d16 )  { stop , rouge , 3 , rond3 , (-0.21,-0.91) };
  d26 = droite( 2 , 6 )  { stop , vertfonce , sansnom };
  d35 = droite( 3 , 5 )  { stop , vertfonce , sansnom };
  C = intersection( d35 , d26 )  { stop , rouge , 3 , rond3 , (-0.21,-0.88) };
  dAC = droite( A , C )  { stop , rouge , 3 , sansnom };
  polyA2C = polygone( 1 , A , C , 3  )  { jaune , plein50 };
  polyA5C = polygone( 4 , A , C , 6  )  { orange , plein40 };
  P5 = pointsur( dAC , -0.56 )  { i };
  G5 = point( -5.17 , -2.58 )  { (-0.45,-0.49) , i };
  sP5G5 = segment( P5 , G5 )  { grisclair };
  Pt5 = texte( G5 ,"To Prove: A,B,C are collinear")  { stop , rouge , (-1.26,0.07) , dec2 , car-2 };

@config;
couleurfonddessin=0xFFFFFF;
boutons=animation;