The statement that best summarizes the rotations that turn a square onto itself is that a square has four rotational symmetries - rotations of 90 degrees, 180 degrees, 270 degrees, and 360 degrees - that maintain its original shape.
The statement that best summarizes the rotations that turn a square onto itself is that there are four possible rotations: 0 degrees (no rotation), 90 degrees, 180 degrees, and 270 degrees.
