The side length must be 3.454 inches, so the exact area is 11.999 inches.
For a square of side length S, the area is given by:
A = S^2.
In this case, we know that the squares have an area of 12 square inches, replacing that in the area equation we get:
12 in^2 = S^2
If we apply the square root on both sides, we get:
√(12 in^2) = √S^2
3.464 in = S
This is an approximation to the side length, if each side measured this, the exact area would be:
A = (3.464 in)^2 = 11.999 in^2
Which is almost what we wanted to get.
If you want to learn more about squares, you can read:
https://brainly.com/question/24487155