input geometriesyr12;
figure(0,0,6u,6u);
pair O, A,B,C,D,E,H;
O=u*(3,3);
path cc;
cc=cercles(O,2u);
A=pointarc(cc,200);
B=pointarc(cc,340);
C=pointarc(cc,120);
D=pointarc(cc,90);
E=pointarc(cc,270);
H=projection(C,A,B);
trace cc;
trace hachurage(cc,60,0.2,0);
remplis triangle(A,B,C) withcolor blanc;
trace triangle(A,B,C);
trace C--H dashed evenly;
trace codeperp(C,H,B,5);
trace appelation(C,H,2mm,btex $3\,cm$ etex);
trace cotation(A,B,-2cm,2mm,btex $4,5\,cm$ etex);
trace cotation(D,E,-2.5cm,2mm,btex $5\,cm$ etex);
fin;
end