// import geometry_dev; // extension devenue l'extension geometry officielle import geometry; // le 12/05/09, dans la version 1.71 d'asymptote. :-)) size(7cm); show(currentcoordsys); triangle t2=triangleAbc(70,3,5,angle=30,A=(2,0)); show(LA="D",LB="E",LC="F", La="",Lb="3",Lc="5", t2,.8bp+red); markangle("$\alpha=30^\circ$",1,radius=.5cm, t2.A+dir(0),t2.A,t2.B);