The smallest angle of rotational symmetry for a square is 90°. option B
Properties of a square
- A square is a quadrilateral with equal 4 sides and 4 vertices.
- The opposite sides of a square are parallel to each other.
- Interior angle at each vertex is 90°.
- Sum of all interior angles is 360°.
Thus, the smallest angle of rotational symmetry for a square is 90°
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