A section is defined as?

A section is defined as one mile square, which translates to a total area of 640 acres. This definition comes from the Public Land Survey System (PLSS) used in the United States to divide and describe land. Each section is a specific geographical unit that facilitates land transactions and planning.

The other options do not accurately describe the definition of a section. For example, 246 acres does not correspond to the standard size of a section, and 5,280 square feet is the measurement of a single acre, not a section. The numbering of sections (1-50) is a method of identification within a township but does not define what a section is in terms of size or shape. Thus, recognizing that a section is one mile square is crucial for understanding land measurement in the context of real estate and land use.