1, three-four-three formation: divided into four rows, the first row standing 2 people, the second row of 3, the third row of 4 people, the fourth row of 3.
2, triangle formation: the first row of 1 person, the second row of 2, the third row of 3, the fourth row of 4. Dance formation is a dance performance in a certain space and time, the color, line, shape and other aspects of the relationship between the reasonable layout.