First off: that's not a square Secondly: going by those parameters, only 16 students could occupy that space.
@Colonel_Angus damn, well I don’t know how to feel. On one hand you vindicated me and on the other you embarrassed me. Rectangle not square,
If you put them 9.25 feet apart on the 37' length, and all those on the edge of the room are smack against the walls, then you could fit 20. But no room for a teacher.