Explanation:
A nonagon has 9 sides, so a regular nonagon will have vertices that are 40° apart as measured from the center. It has 9-fold rotational symmetry,
so the figure will be identical to the original when rotated multiples of 360°/9 = 40°.
![(360)/(9)=40](https://img.qammunity.org/2023/formulas/mathematics/college/3cnxtyu41a8supwdpat4mwdm4t07z9miat.png)
Therefore the degrees will a nonagon have rotational symmetry
Hene the correct answer is Option B