Explanation: We are given that the side length of the square is s+3 inches In a square, all sides are equal. This means that all four sides are s+3 inches Now, to get the perimeter, we would add all four sides as follows: perimeter = s+3+s+3+s+3+s+3 = 4s + 12 inches For a square, since all sides are equal, we can simply get the perimeter by multiplying the side length by 4 as follows: perimeter = 4(s+3) inches
