We would apply the formula for calculating the area of a rectangle which is expressed as
Area = length x width
From the information given,
length = 5
width = 4
By substituting these values into the formula,
Area = 5 x 4 = 20 yard^2
We would convert 20 yard^2 to ft^2
Recall,
1 yard^2 = 9 ft^2
Thus,
20 yard^2 = 20 x 9 = 180
The area is 180 ft^2