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rotational symmetry


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Word
rotational symmetry
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Description:
closed 5 hands like the sign BECOME, the dominant hand rotates and stops showing that the two hands fit exactly on each other.

Definition
an object has rotational symmetry if you can rotate it a given number of degrees and it will fit exactly on top of itself.
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Sentence
Snow flakes, starfish and the image in a kaleidoscope are examples of objects that have rotational symmetry.
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