![](thumbFetcher.php?id=72&size=thumb) | All four sides and angles are congruent. | |
| ![](thumbFetcher.php?id=73&size=thumb) | All three sides and angles are congruent. | |
|
![](thumbFetcher.php?id=276&size=thumb) | A regular nonagon with all diagonals present | |
| ![](thumbFetcher.php?id=277&size=thumb) | A regular dodecagon with all its diagonals | |
|
![](thumbFetcher.php?id=280&size=thumb) | The arc length is a fraction of the circumference. | |
| ![](thumbFetcher.php?id=296&size=thumb) | Each angle is equal to 120 degrees; all sides are congruent. | |
|
![](thumbFetcher.php?id=297&size=thumb) | Regular polygons are equilateral and equiangular. | |
|