#G3----------------------------------------------
profile p d 1 0 l 10 c 5 90 l 10 x -15 
polyline w 0 0 0 0 0 10
pipe p w p
nexplode p f
depouille result p 0 0 1 p_1 5 0 0 0 0 0 1 \
p_5 5 0 0 0 0 0 1 \
p_6 5 0 0 0 0 0 1

set square 939.057