Find the length of the side of a square with an area of 144.

A. 48 in *
B. 12 in
C. 206 in
D. 288 in

A = a²

a = √A

a = √144

a = 12 in

It is 12

To find the length of the side of a square with an area of 144, you need to use the formula for the area of a square, which is side length squared.

Let's represent the side length of the square as "s". According to the given information, the area of the square is 144.

So, we have the equation: s^2 = 144

To find the value of "s", we need to take the square root of both sides of the equation.

√(s^2) = √144

s = sqrt(144)

Now, let's calculate the square root of 144.

s ≈ 12

So, the length of the side of the square is approximately 12 inches.

Therefore, the correct answer is B. 12 in.

To find the length of the side of a square with an area of 144, you need to take the square root of the area value.

The square root of 144 is 12. Therefore, the length of the side of the square is 12 inches.

So, the correct answer is option B: 12 in.