The area of the circle is s = π *1*1= π; The area of the first square is 2 * 2 = 4; Connecting the diagonal of the first square, we can see that the second square is composed of eight small triangles, while the first square is composed of four small triangles with equal area, so the area of the second square is twice that of the first square, and so on, so we get:

The ratio of the area of the circle to the area of the first square π: 4.

The ratio of the area of the circle to the area of the second square π: 8.

The ratio of the area of the circle to the area of the third square π: 16.

To the sixth square, the area is 4 * 2 * 2 * 2 =128, so it is π: 128.

The answer is over, hehe ... I hope I can help you!