## {4,6}, square 1F + square 1F, solution 12
h2.
angleunit(pi/3)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,6))
unittile(1,1,1,1)
unittile(1,1,1,1)
# the Conway notation
conway("[0](1 0')(2 2')(3 1')[3']")
sublines(1)