What is the formula for calculating the area of a square with a side length of 4?
To calculate the area of a square, you can use the formula A = s^2, where A represents the area and s represents the length of a side.
In this case, the side length of the square is given as 4. Therefore, you can substitute this value into the formula to find the area.
A = 4^2
A = 16
Hence, the area of a square with a side length of 4 is 16 square units.