1. The problem asks for the smallest angle of rotation that maps the image onto itself, given it has rotational symmetry.
2. The image is described as an 8-part pinwheel with alternating colors, meaning it has 8 identical segments arranged around a center.
3. The formula for the smallest angle of rotational symmetry is:
$$\text{Smallest angle} = \frac{360^\circ}{n}$$
where $n$ is the number of identical segments.
4. Here, $n=8$, so:
$$\text{Smallest angle} = \frac{360^\circ}{8}$$
5. Simplify the fraction:
$$\frac{360^\circ}{8} = 45^\circ$$
6. Therefore, the smallest rotation angle for the image to look the same is $45^\circ$.
Rotational Symmetry 9751Ae
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