## {4,5}, square 1R2 + domino 1F, solution 4
h2.
angleunit(2*pi/5)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,5))
unittile(1,1,1,1)
unittile(1,1,2,1,1,2)
# the Conway notation
conway("(0)(1 0')(2)(3 0')(1' 5')[2' 4'](3')")
sublines(1)