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Geometry
Definition
| Term | Definition |
|---|---|
| Polygon | A polygon is a flat, two-dimensional (2D) shape with straight sides that is fully closed (all the sides are joined up). |
| Pentagon | A shape with 5 sides and 5 angles. |
| Octogon | A shape with 8 sides and 8 angles. |
| Quadrilateral | A four-sided figure. |
| Decagon | A shape with 10 sides and 10 angles. |