Geometry

Question Analysis:
This question tests understanding of rotational symmetry in regular polygons.

Key Concept Explanation:
Rotational symmetry means a figure maps onto itself at certain angles.
For a regular n-sided polygon, the smallest rotation angle is 360°/n.

Step-by-Step Solution:
A hexagon has 6 sides (n = 6).
Calculate: 360° ÷ 6 = 60°.
The hexagon coincides with itself every 60° rotation.

Option Analysis:
A) Incorrect: 45° is for octagons (360°÷8).
B) Correct: Matches calculation for hexagon.
C) Incor...