Answer:
0.79
Explanation:
Let's find the area of these two shapes- the square and the circle.
For the square, we know the area is length times width, which is 4x4, which is 16.
For the circle, the area is
and r is 2, so the area of the circle is 12.56.
Dividing 12.56 by 16, we get a number roughly around 0.79.