Mathematics for IGCSE & O level - Symmetry (Section 3 - No. 6)
Which of the following statements are true about a 2D shape with rotational symmetry?
It rotates about a center onto itself in more than one position.
It has line symmetry
The number of ways it fits is the order of rotational symmetry.
It has a plane of symmetry
Explanation
A two-dimensional shape has rotational symmetry if it will rotate about a center onto itself in more than one position. The number of ways it fits is the order of rotational symmetry.
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