| Answer | Crossword Clue |
|---|---|
| RADIAN | Angle measurement |
| RAD | Angle measurement (abbr.) |
| THETA | Angle measurement symbol |
| GONIO | ....metry; angle measurement |
| PIS | Symbols used in angle measurement |
| arcsecond | a unit of angle measurement, 1/3600 of a degree also ARCSEC |
| arcseconds | ARCSECOND, a unit of angle measurement, 1/3600 of a degree also ARCSEC |
| 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 |
