verbatimtex
%&latex
\documentclass{article}
\usepackage{amsmath}
\begin{document}
etex

input geometriesyr12;
figure(0,0,10u,10u);
picture img;
img=image(
  label(btex \begin{minipage}{10cm}
    \huge
    $$a^n\times a^m=a^{n+m}$$
    $$\frac13+\frac12=\frac56$$
    $$\sqrt{45}=3\sqrt5$$
    \end{minipage}
    etex,u*(5,5));
  );
draw rotation(img,u*(5,5),30);
fin;
figure(0,0,10u,10u);
pair A,B,C,D,I,J,K,L;
A=u*(1,1);
B=u*(9,1);
C=rotation(A,B,-90);
D-C=A-B;
I=iso(A,B);J=iso(B,C);K=iso(C,D);L=iso(D,A);
path cc;
cc=arccercle(L,K,D)--arccercle(K,J,C)--I--cycle;
img:=image(
  remplis cc withcolor orange;
  trace cc;
  );
trace rotation(img,u*(5,5),120);
fin;
end