How to pose six people in the shape of a six-pointed star with their arms?

How many triangles can you put on six sticks at most? Four.

When the figure composed of six sticks is a regular tetrahedron, four triangles can be formed, which are regular triangles.

Some properties of regular tetrahedron;

1, every face of a regular tetrahedron is a regular triangle, and vice versa.

2. Regular tetrahedrons are three groups of equilateral tetrahedrons perpendicular to the edges.

3. Regular tetrahedron is two groups of equilateral tetrahedrons perpendicular to edges.

In the modern environment, rumors spread faster and harder by using flexible and disorderly network communication. Some rumors often change in communication, which is caused by the memory errors of the recipients and communicators. More importantly, everyone has intentionally or unintentionally added their own subjective color in the process of communication.

Another view is that "rumor" is more derogatory in Chinese semantics. It is often not based on facts, but a rumor deliberately fabricated out of thin air or according to subjective wishes. The act of making such rumors is called "spreading rumors", and the act of spreading such rumors is called "spreading rumors". Because rumors are not based on facts, their authenticity is impossible to talk about, and rumors are often exposed by real information.