If the coordinates of a polygon graphed in the first quadrant with one vertex on the origin are (0,0), (a, 0), (a, a), (0, a), then what is the most precise name for the polygon?

We are given the coordinates of a polygon that are (0,0), (a, 0), (a, a), (0, a). we can project these coordinates in a plot and see that there are four sides of the polygon. The sides of the polygon re equal and perpendicular to each other. Hence the polygon is a square