## {4,7}, domino 1F, solution 9
h2.
angleunit(2*pi/7)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,7))
unittile(1,1,2,1,1,2)
# the Conway notation
conway("(0 1)(2 4)[3 5]")
sublines(1)