Final answer:
The S 1/2 of the N 1/2 of the SW 1/4 refers to a specific subdivision within a section of land. It can be divided into 4 quarters, containing a total of 40 acres.
Step-by-step explanation:
The S 1/2 of the N 1/2 of the SW 1/4 refers to the southern half of the northern half of the southwest quarter of a section.
To find the number of acres in this particular area, we need to understand the measurements used in land divisions. The basic unit of division is the township, which is a square parcel of land six miles wide.
Each township is divided into 36 sections, and each section is one square mile or 640 acres. The S 1/2 of the N 1/2 of the SW 1/4 is a smaller subdivision within a section. It can be divided into 4 quarters, so it would contain 40 acres.