box b1 0 0 0 1 1 1
dset a30 atan2(1,2)*180/pi
dset r sqrt(5)
box b2 -0.1 0 0 1.5 1/r 1
trotate b2 1 0 0 0 0 1 a30

bop b1 b2
bopfuse result

set square 8.11803