what is rotational symmetry for a smiley face ?
No it is not possible .You need to turn it all the way around to have it look like a smiley. 180 degree rotation is a frown but the eyes are on the bottom.
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what is rotational symmetry for a smiley face ?
No it is not possible .You need to turn it all the way around to have it look like a smiley. 180 degree rotation is a frown but the eyes are on the bottom.