#I3---------------------------------------------- polyline p 0 0 5 0 0 0 20 0 0 20 0 5 beziercurve bc 4 20 0 5 15 0 6 5 0 4 0 0 5 mkedge bc bc wire p p bc mkplane p p prism p p 0 20 0 plane pc 10 10 0 0 0 1 pcone pc pc 5 4 10 bfuse f p pc nexplode f f depouille result f 0 0 1 f_7 1 0 0 10 0 0 1 set square 1325.75