## {4,4}, pentomino 7 (N), solution 22 e2. angleunit(pi/2) # the line below lets us specify internal angles angleofs(pi) unittile(1,1,2,1,3,2,1,1,2,2,1,3) # the Conway notation conway("[0 4][1 5][2 7][3 11](6)(8 10)(9)") sublines(1)