A:=point(-4,-1); B:=point(-2,-1); C:=point(-3.5,0); triangle(A,B,C); carre(B,A,K,H); carre(C,B,D,E); carre(A,C,G,F); parallelogramme(B,D,H,J); parallelogramme(C,G,E,L); triangle(A,J,L); B1:=translation(B-H,B); segment(B1,B); segment(B1,L); segment(B1,D); segment(C,L);