#C2----------------------------------------------

plane p 0 0 0 1 0 0 0 0 -1
pcone p p 15 18 20
plane p2 10 0 15 0 0 1
pcylinder p2 p2 5 10
bfuse f p p2
nexplode f f
depouille result f 0 0 1 f_4 5 0 0 25 0 0 1

set square 4099.12