Where is your center?
Where do you contact the floor?
Where do you contact your partner(s)?
What is the distance between the floor and your center?
What is the distance between the floor and where you contact your partner(s)?
What is the distance between your center and where you contact you partner(s)?
How do you use one point to affect the others?
What is the size of each these points?
What is the size of the triangle?