Question: how to find the length and width of square?
Answer: Divide 4 by 2 to get a width of 2 inches. Take the square root of the area to find the width if the rectangle is a square. For instance, if the area of the rectangle (square) is 25 square inches, find the square root of 25. Because 5 times 5 equals 25, 5 is the square root and also the width of the rectangle.