Help for 10 pts? i'm really confused :\

1 and 2.

http://img135.imageshack.us/img135/4266/110609172102.png


3 and 4 and 5.

http://img193.imageshack.us/img193/4206/110609172112.png

You have 1 right. 2 is equilateral. 3 is none. 4 is regular. 5 is regular.