The vertices of a rectangle are a parentheses 2, 0 B ( 5, 0 C ( 5, -2 and D ( 2, -2 reflect a rectangle in the y-axis and then rotate the rectangle 180° about the origin what are the coordinates of the image

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.