What is the unit of length in English measure that is legally equal to 5 1/2 yards?

The unit of length in English measure that is legally equal to 5 1/2 yards is referred to as a pole, which is sometimes also called a rod or perch. In the context of land measurement, a pole is defined as exactly 16.5 feet, which translates to 5 1/2 yards since there are 3 feet in a yard (5.5 yards x 3 feet/yard = 16.5 feet). This traditional unit is frequently used in surveying and land division, especially in referencing areas or plots of land.

Understanding the relationship between different units of measurement is crucial for professionals in surveying and land measurement, as it ensures accuracy when interpreting or converting measurements. The pole's historical usage and legal definitions can vary, but its equivalency to 5 1/2 yards serves as an important reference point in this context.