Or the judge may only accept written evidence. To support a request for temporary child support, you will probably need to produce copies of an income and expense budget -- or you may have had to fill out income and expense forms before you even filed the request -- and the judge will review them. The judge will:
The most simple form of set square is a triangular piece of transparent plastic (or formerly of polished wood) with the centre removed. More commonly the set square bears the markings of a ruler and a half circle protractor. The outer edges are typically bevelled.
For the purposes of defining compact sets in a metric space, it's fine to just consider covers by open balls. (if you don't know what a metric space is, think about the plane or 3d space with the usual notion of distance. An open ball is just the set of points that are at a distance less than R from some point). For example, a square in the plane - including its interior points *and* its boundary - is a compact set.