How many square miles are in one township?

A township in the context of land measurement is typically defined as having an area of 36 square miles. This measurement stems from the Public Land Survey System (PLSS) used in the United States, where a township is laid out in a grid of sections. Each township consists of 36 sections, with each section being one square mile in size.

Thus, when calculating the total area, you multiply the number of sections (36) by the area of each section (1 square mile). This gives you a total area of 36 square miles for one township.

The other choices do not align with this standard measurement, as a township is universally recognized as 36 square miles, making this answer the only correct one in this context.