| Answer | Crossword Clue |
|---|---|
| CONCAVE | Like part of a circle |
| SECTOR | Part of a circle |
| ARC | Part of a circle |
| OCTANT | Part of a circle. |
| QUADRANT | Part of a circle. |
| ARC | Part of a circle. |
| SECTOR | Part of a circle. |
| OCTANT | Eighth part of a circle |
| OCTANT | Eighth part of a circle. |
| QUADRANTAL | In the shape of a fourth part of a circle. |
| FIFTHWHEEL | Useful type of hitch in a pickup truck, or an undesired part of a social circle |
