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Polygons Index |
Geometry
Polygons
Polygons
Concave Polygon
What Is A Concave Polygon?
A polygon is concave if
at least one of the interior angles
is greater than 180 degrees
| 5 sides | pentagon |
| 6 sides | hexagon |
| 7 sides | heptagon |
| 8 sides | octagon |
| 9 sides | nonagon |
| 10 sides | decagon |