what is the smallest angle of rotational symmetry for a square?\n45°\n90°\n180°\n360°

what is the smallest angle of rotational symmetry for a square?\n45°\n90°\n180°\n360°
Answer
Explanation:
Step1: Recall rotational - symmetry concept
A square can be rotated about its center.
Step2: Determine the number of rotational symmetries
A square has 4 rotational symmetries (including the 360 - degree rotation).
Step3: Calculate the smallest angle
The full - circle rotation is 360°. Divide 360° by the number of non - equivalent rotational symmetries (excluding 360° itself). So, $\frac{360^{\circ}}{4}=90^{\circ}$.
Answer:
90°