1: The first question is correct. Because all eight are squares, no matter what kind of figures you spell, the ones exposed at the outermost are squares.

2. The second question is correct. Through direct calculation, a square of 12m has a side length of 3m and an area of 9m2. For example, a rectangle is 2 in length, 4 in width and 8m2 in area (in fact, the basis of this problem is a theorem: the mean value theorem, which is a three-level problem, so I won't elaborate on this theorem, which is beyond the level).

The third question is wrong. Not the same unit, so you can't compare the sizes.