0, 8, and possibly 1 depending on how you write it. Anything with only these numbers in a palindromic form (18081) is symmetrical too.
A trapezoid has no rotational symmetry.
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.
No A rectangle has rotational symmetry as well
No, because the numbers are not symmetrical.
-9
A trapezium does not have rotational symmetry.
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.
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.
It does have rotational symmetry of order three.