Mathematics for IGCSE & O level - Symmetry (Section 2 - No. 24)
What can you conclude about a shape which has rotational symmetry of order 1?
It has no rotational symmetry.
It has only one line of symmetry.
It has rotational symmetry.
It is identical to the original in only one position in a full rotation.
Explanation
A rotational symmetry of order 1 means the shape fits itself only once during a full rotation.
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