| Name | Name:Nonagon | Name:Hexadecagon | 
| Sides | Sides:9 | Sides:16 | 
| Interior Angle | Interior Angle:140.00 | Interior Angle:157.00 | 
| Sum of Interior Angles | Sum of Interior Angles:1260 | Sum of Interior Angles:2520 | 
| Description | Description:A polygon with 9 sides is called a nonagon (or an enneagon) | Description:A polygon with 16 sides is called a hexadecagon | 
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