To show that the rectangle in Quadrant III is congruent to the rectangle in Quadrant I Darnell rotates the first rectangle 90 degrees clockwise into Quadrant II. What is his next step

To show that the rectangle in Quadrant III is congruent to the rectangle in Quadrant I, Darnell needs to perform a sequence of transformations. After rotating the first rectangle 90 degrees clockwise into Quadrant II, the next step could be to reflect the rectangle over the y-axis. This reflection will position the rectangle in Quadrant IV, making it congruent to the rectangle in Quadrant I.