input geometriesyr16; figure(0,0,7u,5u); x.u=5mm; y.u=5mm; pair A,B,C,D; A=placepoint(10,7); B=placepoint(6,8); C=placepoint(5,4); D=placepoint(2,7); trace droite(C,placepoint(10,9)); label.lrt(btex $(d)$ etex,placepoint(10,9)); marque_p:="croix"; nomme.lrt(A); nomme.ulft(B); nomme.ulft(D); nomme.lrt(C); fin; end