Square.
A square polygon by definition has one face and it is square.
quadrilateral
All of them.
square
Yes, a square is an equilateral polygon
A square is a Polygon, because it has no curves, 4 sided figure, and it has 4 vertices
No. The word "polygon" itself just means "many sides". A square is a special polygon with four equal sides and four right angles.
A square cannot be irregular though it is a polygon.
Yes
A line is not a polygon. A polygon is a closed figure with straight sides, while a line is a straight path with no endpoints.
a square
Yes every square is a regular polygon.