Final answer:
The area of a square patch of grass with a side length of 'm' meters is calculated as m*m or m^2 square meters.
Step-by-step explanation:
The area of a square is calculated by multiplying its side length by itself. In this case, if the length of the side of the square patch of grass is represented as 'm' meters, then the area would be calculated as m * m or m^2.
Therefore, the area of the grass patch is m^2 square meters.
Learn more about Area of a square