| Answer | Crossword Clue |
|---|---|
| RHOMBI | Four-sided figures |
| TRAPEZIA | Certain four-sided figures |
| TRAPEZOIDS | Certain four-sided figures. |
| HEPTAGONS | Seven-sided figures |
| TRIGONS | Three-sided figures. |
| POLYGONS | Many-sided figures. |
| NONAGONS | Nine-sided figures. |
| PENTAGONS | Five-sided figures |
| DECAGONS | Ten-sided figures |
| OCTAGONS | Eight-sided figures |
| HEXAGONS | Six-sided figures |
| NONAGONS | Nine-sided figures |
| ENNEAGONS | Nine-sided figures |
| RHOMBI | Equal-sided figures |
