Final answer:
To find the approximate perimeter of a bulletin board, determine the side length by taking the square root of the area. Then, multiply the side length by 4 to find the perimeter.
Step-by-step explanation:
To find the approximate perimeter of a bulletin board, we need to determine the dimensions of the bulletin board. Since we are given the area of the bulletin board which is 23 sq ft,
we need to find the side length of a square with an area of 23 sq ft.
To do this, we can take the square root of 23, which is approximately 4.7958.
This means that each side of the square has a length of approximately 4.7958 ft.
Now, to find the perimeter, we can multiply the length of one side by 4,
since a square has four equal sides. Multiplying 4.7958 by 4 gives us an approximate perimeter of 19.1832 ft.