Final answer:
4. 12 feet. The area of a square is calculated by squaring the length of one side. As the given area is 144 square feet, the side length is the square root of 144, which is 12 feet.
Step-by-step explanation:
The question relates to the concept of area of a square in mathematics. In a square, all four sides are equal. Therefore, to find the side length 's', you will have to find the square root of the area.
Given that the area of the square is 144 square feet, the equation becomes:
s^2 = 144
So taking square root on both sides, we get:
's' = square root of 144
Square root of 144 is 12, thus, the length of one side of the garden is 12 feet.
So the answer is option 4) 12 feet.
Learn more about Area of a square