| Answer | Crossword Clue |
|---|---|
| ARC | Degree of angular measurement. |
| RADIANS | Units of angular measurement |
| RADIAN | Unit of angular measurement |
| MIL | Artillery unit of angular measurement |
| mil | unit of angular measurement equal to 1/6400 of 360 degrees and used especially in artillery |
| radian | a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 57.3 degrees |
