c1 = circle(x=0, y=0, r=150, fill="black", stroke="black") show(c1) c2 = circle(x=0, y=0, r=140, fill="red", stroke="red") show(c2) c3 = circle(x=0, y=0, r=135, fill="yellow", stroke="yellow") show(c3) r1 = rectangle(x=0, y=0, w=200, h=200, fill="black", stroke="none") | repeat(3, rotate(30)) show(r1) #r2 = r1 | rotate(45) #show(r2) c4 = circle(x=0, y=0, r=105, fill="red", stroke="red") show(c4)