A rectangular plot of land has a length of 20 meters and a width of 10 meters. Surrounding this plot is a walkway that is uniformly 2 meters wide. To find the area of the walkway alone, you first need to calculate the area of the entire region including the plot and the walkway, and then subtract the area of the plot from it.
Use the formulas for the area of a rectangle, noted as:
$$ A = ext{length} imes ext{width} $$