| Clue | Source | Date |
|---|---|---|
| Figures with nine sides | The Telegraph Cross Atlantic | 30 Mar 2026 |
| Figures of ones over the eight (8) | ||
| Regular ____ have internal angles of 140 degrees | The Times Specialist Sunday | 13 Oct 2024 |
| Nine-sided shapes | USA Today | 30 May 2023 |
| Almost no-one sang about geometric figures | ||
| Almost no-one sang about geometric figures | ||
| Nine-sided figures | ||
| Nine-sided figures | ||
| Nine-sided figures | ||
| Plane figures. | ||
| Nine-sided figures. |