An equilateral polygon is a type of polygon where all sides are of equal length. This means that if you measure each side, they will all be the same. Equilateral polygons can have different numbers of sides, such as triangles or hexagons, but the key feature is that the lengths of the sides are identical. In addition to being equilateral, some polygons can also be equiangular, meaning all their angles are equal. For example, a regular triangle is both equilateral and equiangular, while a regular hexagon is equilateral but not a triangle.