| Name | Name:Icosagon | Name:Pentadecagon |
| Sides | Sides:20 | Sides:15 |
| Interior Angle | Interior Angle:162.00 | Interior Angle:156.00 |
| Sum of Interior Angles | Sum of Interior Angles:3240 | Sum of Interior Angles:2340 |
| Description | Description:A polygon with 20 sides is called an icosagon | Description:A polygon with 15 sides is called a pentadecagon |
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