Actually, there are several names for a rectangle that are correct. A rectangle is a polygon, a quadrilateral, and even, sometimes, a square.
it doesnt have a name if it has the name is square
Tetradecagon
A pentagon is a 5 sided polygon
From what I have been able to find out (using my daughter's homework) is that "Power Polygons" are any "normal" polygon that can be combined with another "normal" polygon to form another, different looking polygon (a mega-polygon, I guess?)that you can then divide up so you can see the individual "Power Polygon" pieces. Perhaps the name "Power Polygons" is derived from the fact that these polygons have the power to create other polygons. Logically then a "Power Polygon" is, really, just any polygon, just with a new, exciting, and high tech sounding name.
It is a regular 4 sided quadrilateral
4-sided polygon
square and rhombus
hrombos, rhombus (gig); trapezion, trapezium (wedge); trapezoid (wedgelike)
it depends which polygon you are asking about. A square is a 4 sided polygon.
Quadrilateral
polygon, trapezium, quadrilateral are three other names
Regular polygon Equilateral polygon Polygon with rotational symmetry
Actually, there are several names for a rectangle that are correct. A rectangle is a polygon, a quadrilateral, and even, sometimes, a square.
square?
A quadrilateral
A square is also referred to as a quadrilateral with all four sides equal in length and all four angles equal to 90 degrees.