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Describing Rotations

Describing Rotations 1.12 - Solution

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A figure in the plane has rotational symmetry if the figure can be mapped onto itself by a rotation between and about the center of the figure, called the center of symmetry. Keeping this statement in mind, let's examine the given figure.

We see that there is no rotation between and maps the figure onto itself. Therefore, the figure does not have rotational symmetry.