Answer:
The area of the barn in square feet is:
- 10200

Explanation:
To obtain the area of the figure, in this case a rectangle, you must use the next formula:
- Area of a rectangle = long * wide
When we replace the variables with the values in the exercise, we have:
- Area of a rectangle = 50 ft * 204 ft
- Area of a rectangle = 10200 ft^2
Remember that in the case of the units, when these are the same, you elevate this to square, cube, or more depending on the number of units multiplied.