| Answer | Crossword Clue |
|---|---|
| DIAMETER | Longest line within a circle. |
| FRIGID | Zone within a Circle |
| SUBSET | Circle within a circle, in a Venn diagram |
| INFERNO | Source of the line "Midway upon the road of our life I found myself within a dark wood ..." |
| DIAMETER | Line across a circle |
| ARC | Line of a circle |
| CHORD | Line in 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 |
| RADIUS | Line from the center to the perimeter of a circle |
| NORTHSTAR | Thing located in the night sky by extending a line from circle F past circle G |
