Drag the slider from left to right to rotate the polygons. The position of the slider indicates the specific angle of rotation.

If the polygon is mapped to itself after a rotation of between 0 and 360 degrees, the shape has rotational symmetry.[br]Which of these shapes have rotational symmetry? Which do not?[br]For the shapes that have rotational symmetry, for what angle measure(s) does the figure map to itself?