Answer:
Area of the sidewalk =

Explanation:
Perimeter of the square land = 4a = 24 feet
Side of the square land = a = 24/4 = 6 feet
Now, length of the sidewalk is 6 feet and its width is given as 1 foot.
So, area of sidewalk = length × width
= 6 × 1 =

Hence, area of the sidewalk =
