A trapezium does not have rotational symmetry.
no
0,one full turn doesn't count as a rotational symmetry
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.
triangle
A trapezoid has no rotational symmetry.
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.
no
No.
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
No because 90 degrees and 180, 270 degrees don't work for the trapezoid