No.
None
No a Z doesn't have a rotational symmetry
It has line symmetry (straight down the center) but not rotational symmetry.
It does have rotational symmetry of order three.
A trapezium does not have rotational symmetry.
A "pure" trapezoid (a pair of parallel sides and two random sides) does not have rotational symmetry. If it is a parallelogram then it has a 180 degree symmetry. And if the paralloelogram happens to be a square, you have 90 deg symmetry.
A trapezoid does not have rotational symmetry. Rotational symmetry occurs when a shape can be rotated by a certain angle and still appear the same. In a trapezoid, the angles and side lengths are not equal, so rotating it will result in a different shape. Therefore, a trapezoid does not have rotational symmetry.
no
No.
It has only 1.
0,one full turn doesn't count as a rotational symmetry
A isosceles trapezoid for example.
None
Yes, an isosceles trapezoid does have rotational symmetry. An isosceles trapezoid is a quadrilateral with two parallel sides of equal length, which means it can be rotated around its center by certain angles (180 degrees, in this case) and still look the same. This is an example of rotational symmetry, where the shape can be rotated and still appear unchanged.
How about an isosceles trapezoid
triangle