The area of a square is given by the formula A = s^2, where s is the length of one side of the square.
In this case, we are given that the area is 289 cm^2. Let's solve for s:
289 = s^2
Taking the square root of both sides, we get:
s = √289
s = 17 cm
Now, we can calculate the perimeter by adding up all four sides of the square:
Perimeter = 4s
Perimeter = 4(17 cm)
Perimeter = 68 cm
Therefore, the perimeter of the square is 68 cm.