What is Rotational Symmetry?
A shape has rotational symmetry if it looks the same after a rotation by an angle less than \(360^\circ\).
Select a polygon and rotate it slowly until the two shapes—the original blue shape and the rotated red shape—match. A message indicating the angle of rotational symmetry will be displayed. Note that the shapes used here are regular polygons.
Interactive Rotational Symmetry Explorer
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