Are equilateral triangles and five pointed stars on the national flag centrosymmetric

Are equilateral triangles and five pointed stars on the national flag centrosymmetric

None of them!
When n is even, it is a centrosymmetric figure
When n is odd, it is not a centrosymmetric figure
For example: the vertex of the pentagram, the symmetrical point about the center, is no longer on the pentagram
(when we say that a figure is a centrosymmetric figure, we mean that there is a point called the center, each point of the figure
A point, a symmetric point about the center, is still on the graph

Is a pentagram a centrosymmetric figure

No!
Definition: in a plane, a figure rotates 180 ° around a point. If the figures before and after rotation coincide with each other, the figure is called a central symmetry figure, and the point is called its symmetry center

Is the pentagram a centrosymmetric figure?

It is not a centrosymmetric figure. Centrosymmetric figure refers to the figure that completely coincides with the original figure after rotating 180 degrees around a certain point. 100% guarantee that my answer is correct