A shape with 12 sides is called a dodecagon.
The reference material provided states: "A dodecagon is a 12-sided polygon." This confirms that a dodecagon is indeed the name for a 12-sided shape. The reference also notes that a regular dodecagon has vertices equally spaced around a circle and all sides of the same length.
Here's a more detailed look at dodecagons:
- A dodecagon is a polygon with 12 sides, 12 vertices, and 54 diagonals.
- Regular Dodecagon: A regular dodecagon is equiangular (all angles are equal) and equilateral (all sides have the same length).
- Irregular Dodecagon: An irregular dodecagon has sides and angles that are not all equal.
Here's a table summarizing the key features:
| Feature | Dodecagon |
|---|---|
| Number of Sides | 12 |
| Type | Polygon |
