## {4,4}, pentomino 5 (R), solution 13
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,1,3,1,1,3,1,1,2,3)
# the Conway notation
conway("(0 9)(1 8)(2 7)(3)(4 6)(5)(10 11)")
sublines(1)