Not sure what it means by "classify" But I'm assuming it just means name the shapes. If that's the case,
11 is a square, because all the inside lines are the same length, and all meet at 90 degree angles.
12 is a rectangle, because all the sides are parallel, but they are not congruent.
13, I've no idea.
I sincerely hope I helped, though I probably did not.
~BP98