the sides and the angles are the same
No. A polygon has exactly the same number of angles as sides.
Any polygon has the same number of angles as its sides.
A polygon has an equal number of sides and angles. For example, a triangle has 3 sides and 3 internal angles.
A cube is not a polygon.
No because it has as many angles as it has many sides
The number of sides and the number of angles are always equal.
A polygon has the same number of sides as angles. And, this is always so, not just usually.
Not that I know of, an octagon has eight sides and eight angles. Triangles have three of each, as well as hexagons. Based on that information, I'm pretty sure it's the same case with any polygon.
Any polygon has the same number of sides and angles
Polygons have an equal number of sides and angles.
A polygon has 3 or more sides and is called regular when all sides and angles are equal and it is irregular when its sides and angles are not equal.