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A 1/6 pipe bend corresponds to 1/6 of a complete circle. A complete circle consists of 360 degrees, so to find the measure of a 1/6 bend, you divide 360 degrees by 6.

Calculating this gives:

360 degrees ÷ 6 = 60 degrees.

However, if the answer given is 22.5 degrees, it seems there may be confusion around different types of bends. In piping terminology, angle bends can also refer to smaller segments, and sometimes in practical applications, piping systems use segments that represent fractions of more common angles, like a 1/4 bend (90 degrees) being worked down to smaller increments like 22.5 degrees for flexibility in layout.

Given this perspective, it looks like a typical approach is being taken in the context of assembly, where smaller angles are preferred for certain configurations, hence a 1/6 configuration might actually commonly assume a bend that could be perceived as 22.5 degrees when seen from a common segmented usage.

Therefore, understanding that a variety of angles can be deemed useful in specific design contexts helps clarify why 22.5 degrees might be referenced when dealing with certain piping bends, acknowledging the adjustments and flexibility needed in