Patrick T. answered 08/23/24
Masters and B.Sc in Electrical Engineering with Math minor
Hello Joseph,
The question asks for the total length of wood. In other words, you're asked to find the perimeter of the square box.
If every side of a square has length s, the perimeter of a square is P = 4s
How do we find s in the 1st place? You're given the area of the square box: 196 square feet.
Formula for area of a square: A = s2. So 196 = s2. If you solve that equation by taking the square root on both sides, you get 14 = s, so the square has sides that are 14 feet long.
Plug that answer into the formula for the perimeter to answer the original question: P = 4*14 = 56 feet.
The total length of wood Mrs. Drew needs to make the sides of the sandbox is 56 feet.