An angle defined in military terms as 1/6400 of a circle is called a

• A. Mil
• B. Degree
• C. Radian
• D. Minute

Answer: (A)

A mil is a unit of angular measure used in military contexts, defined as 1/6400 of a full circle. That means a circle is divided into 6,400 equal parts, and each part is one mil. This setup is handy because it makes rough range and lead calculations straightforward: at typical shooting distances, 1 mil corresponds to about 1 meter of lateral shift at 1,000 meters (roughly 0.98 m in precise terms), so you can translate angular error directly into linear offset with simple mental math.

Degrees, by contrast, split the circle into 360 parts, minutes are 1/60 of a degree, and radians relate to the circle through the radius, not a fixed fraction like 1/6400. None of those match the 1/6400 division described here, so the correct term for this angle is mil.