Which is the side length of a square with an area of 144 ft squared?

36, 72, 12 or 18 ft.?

Is it 12?

yes

Its 12

To find the side length of a square with an area of 144 ft², we need to find the square root of 144, as the side length is the same as the square root of the area.

√144 = 12 ft.
So, the correct answer is indeed 12 ft.

To find the side length of a square with a given area, you need to take the square root of the area. In this case, we have an area of 144 ft².

To find the square root of 144, you can use a calculator or mathematical techniques. The square root of 144 is 12.

Therefore, the correct answer is 12 ft.