How large is a township in the rectangular survey system?

A township in the rectangular survey system is defined as 6 miles on each side, which indeed totals 36 square miles. This measurement originates from the Land Ordinance of 1785, which established a system for surveying and dividing land in the United States.

In this system, land is divided into townships and sections, with each township comprising six miles squared. This structure allows for easier navigation, sale, and management of land. The 36 square miles can further be divided into 36 sections, each typically spanning one mile by one mile, allowing for a systematic and organized land management approach.

The other options do not accurately describe the dimensions or total area of a township based on the rectangular survey system and therefore do not represent correct information.