Assuming the area is a rectangle, 242.42 acres.
Answer: 877,800 ft² = 20.1515 acres
A rectangle measuring (300ft x 200ft) encloses an area of 1.3774 acres (rounded).
Multiply length and width to get square feet. This assumes you are talking about a rectangle. Then look up the conversion factor from acres to square feet, and divide by that conversion factor.
1.28 acres 1.28 acres