Answer:
a. The circle doesn't fill 4 squares
b. The circle is greater than 2 squares
c. The area is more than 3 square units.
Explanation:
The area of the circle is a measure of the region that the circle occupies. Since the circle doesn't fill 4 squares, we can say that the area is less than 4 square units.
In the same way, the area is more than 2 square units because the circle occupies more than half of each square. We can also compare the following figures:
Finally, we can compare the following figures and think that the area is more than 3 square units.