It has rotational symmetry to the order of 2
A regular nonagon with 9 sides has a rotational symmetry of 9.
Rotational symmetry of order 1.
A line has 180 degrees rotational symmetry.
They have not got any rotational symmetry
Along the length of the arrow, probably 2 - possibly 3. Otherwise there is no rotational symmetry.
A kite, An arrowhead, an isosceles trapezium are three possibilities.
It has 8lines of rotational symmetry
A trapezium, a kite, an arrowhead, a quadrilateral with 4 different sides. In fact, anything other than a parallelogram (and its special cases).
A trapezium does not have rotational symmetry.
The letters H and Z have both line symmetry and rotational symmetry
It has rotational symmetry to the order of 2
Equilateral triangles have rotational symmetry.
A trapezoid has no rotational symmetry.
No a Z doesn't have a rotational symmetry
A line has rotational symmetry of order 2.
It has line symmetry (straight down the center) but not rotational symmetry.