mathematical solving methods | scienceinfo.net

Extremely confused with the riddle
This riddle read seems to be unreasonable but still has a solution. Can you do it?
The matchstick problem made many people confused
The puzzle problem requires turning two triangles from 6 matches into 4 shapes by moving only two rods but not everyone can find the answer right away.
The problem is for grade 7 children, but makes 60% of adults give up! How about you?
Seems like the saying