It can also<span> be defined as an equiangular quadrilateral, since equiangular means that all of its angles are equal (360°/4 = 90°). It can </span>also<span> be defined as a parallelogram containing a right angle. A </span>rectangle <span>with four sides of equal length is a </span>square<span>. So the answer is that they are the same but the answer is SQUARE.