No. : ) 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.
Line symmetry.
one
It has rotational symmetry to the order of 2
A regular nonagon with 9 sides has a rotational symmetry of 9.
Yes, a crescent has a rotational symmetry.
Line symmetry.
A smiley face has no rotational symmetry. So the order is 1.
yes it could still be rotatonal symmetry
one
A trapezium does not have rotational symmetry.
6
The letters H and Z have both line symmetry and rotational symmetry
It has 8lines of rotational symmetry
It has rotational symmetry to the order of 2
Equilateral triangles have rotational symmetry.
No a Z doesn't have a rotational symmetry
A trapezoid has no rotational symmetry.