| Answer | Crossword Clue |
|---|---|
| ARC | Line of a circle |
| RADIUS | Line from the center to the perimeter of a circle |
| CHORD | Line in a circle |
| DIAMETER | Line across a circle |
| DIAMETER | Longest line within a circle. |
| SECANT | Straight line through a circle |
| CHORD | Line connecting two points on a circle |
| CHORD | Line segment joining two points on a circle |
| NORTHSTAR | Thing located in the night sky by extending a line from circle F past circle G |
| TANGENT | Circle line |
| DIAMETER | Circle line |
| RADIUS | Circle line |
| SWATH | Crop-circle line |
| DIA | Circle line: Abbr. |
| RAD | Circle line: Abbr. |
| SEINE | Circle Line : Hudson :: Bateaux-Mouches : .. |
