## {4,5}, domino 1F + domino 1F, solution 23
h2.
angleunit(2*pi/5)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,5))
unittile(1,1,2,1,1,2)
unittile(1,1,2,1,1,2)
# the Conway notation
conway("(0)(1 1')(2 3')[3 5][4 2'](0')(4' 5')")
sublines(1)