The coordinates of a polygon are (2, 3), (4,7), (8,5), and (7,2). if the polygon rotates 90° clockwise about the origin, in which quadrant will the transformation lie? what are the new coordinates?

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )