7.10.6 cupB



  \begin{texgraph}[name=cupB, export=pgf]
  Marges(0,0,0,0),size(7.5),
  A:=setB("A", 0, [rotation:=30]),
  B:=setB("B", 0, [rotation:=-30]),
  C:= cupB(A,B),Color:=red,FillStyle:=full,
  drawSet(C, [FillOpacity:=0.5, FillColor:=pink])
  \end{texgraph}

 PIC



cupB macro