How many square feet are in one acre?

One acre is defined as a unit of area that is equivalent to 43,560 square feet. This measurement is standardized and is widely used in land measurement across various contexts, including agriculture, real estate, and landscaping. Understanding the size of an acre is essential, especially in fields like landscaping and agriculture, where land area is often a critical factor in planning and application of practices, such as fertilizer application.

The other choices do not reflect the correct measurement of an acre. Recognizing that an acre is specifically established at 43,560 square feet is crucial for anyone working with land to ensure accurate assessments of land use, planning for planting, and implementing environmental practices.