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