If a square field has an area of 479ft squared, what is the approximate length of the side of the field? (To the nearest foot)

In the problem, "if a square field has an area of 479ft squared, what is the approximate length of the side of the field".

The given is:

Area = 479 ft

Formula: Since to get the area you have to have length and width hence the formula of area which is:

Area = length x width

We can derive the equation. As length x area = area2

Solution:

Length = area2

Length = square root of 479 ft squared

Length = 21.9 ft"