1. (1,1),(0,1),(1/2, 1+sqrt(3)/2)
2. (1+sqrt(3)/2,1/2),(1,0),(1, 1)
3. (1-sqrt(3)/2,1/2),(1,0),(1, 1)
4. (0,0),(sqrt(3)/2, -1/2),(sqrt(3)/2, 1/2)
5. (0,0),(0,1),(sqrt(3)/2,1/2)
6. (1,1),(0,1),(1/2, 1-sqrt(3)/2)
7. (1/2,sqrt(3)/2),(-1/2,sqrt(3)/2),(0,0)
8. (1/2,-sqrt(3)/2),(-1/2,-sqrt(3)/2),(0,0)
9. (0,0),(0,1),(-sqrt(3)/2,1/2)
10. (0,0),(-sqrt(3)/2,-1/2),(-sqrt(3)/2,1/2)
11. (1/2,sqrt(3)/2),(1,0),(0,0)
12. (1/2,-sqrt(3)/2),(1,0),(0,0)