 | All four sides and angles are congruent. | | |
|  | All three sides and angles are congruent. | | |
|
 | A regular nonagon with all diagonals present | | |
|  | A regular dodecagon with all its diagonals | | |
|
 | The arc length is a fraction of the circumference. | | |
|  | Each angle is equal to 120 degrees; all sides are congruent. | | |
|
 | Regular polygons are equilateral and equiangular. | | |
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