| Answer | Crossword Clue |
|---|---|
| chiliagon | (Greek) a plane figure of a thousand angles and sides |
| chiliagons | CHILIAGON, (Greek) a plane figure of a thousand angles and sides |
| hexagons | A plane figure with six straight sides and angles |
| heptagons | A plane figure with seven straight sides and angles |
| triangle | A plane figure with three straight sides and three angles |
| triangles | A plane figure with three straight sides and three angles |
| quadrangle | a plane figure with four angles (and therefore four sides) |
| pentagons | A plane figure with five straight sides and five angles |
| quadrangles | QUADRANGLE, a plane figure with four angles (and therefore four sides) |
| polygon | A plane figure with at least three straight sides and angles, and typically five or more |
| polygons | A plane figure with at least three straight sides and angles, and typically five or more |
