For all these sports the muscles of the legs are needed.
Playing volleyball can benefit health. It increases heart rate and respiration, and also keeps the body moving. Muscles in the arms, legs, and core are used.
legs
forearms biceps
your thy and arms
butt muscle
your legs because you have to jump high enough
Mainly your arm, but all muscles are used.
There are a number of different kinds of equipment used in playing volleyball. You need a net, a ball, players, and usually some sort of protective gear for the wrists and knees.
You definitely use your arm muscles ALOT when it comes to beam and bars. You also use your calve muscles when floor excersizes are involved. Not saying that's it, but those are the most dominant ones used.
Brachialis
If you refer to actually playing volleyball, you certainly won't need the quadratic equation or other advanced math.