ANSWER
60 feet
EXPLANATION
We have that the area of the square garden is 225 square feet.
To find the perimeter, we have to first find the length of the sides of the garden.
The area of a square is given as:
[tex]\begin{gathered} A=L^2 \\ \text{where L = length of sides} \end{gathered}[/tex]This means that:
[tex]\begin{gathered} 225=L^2 \\ \text{ Find the square root of both sides:} \\ \Rightarrow\text{ L = 15 feet} \end{gathered}[/tex]The perimeter of a square is given as:
P = 4L
So, the perimeter of the garden will be:
P = 4 * 15
P = 60 feet
The perimeter will be 60 feet.
