First of all, Angular does not depend on jQuery - you can use Angular perfectly fine without using jQuery. See this answer on the conceptual shift and this question on whether or not it's needed.
Second of all - you refer to jQuery before Angular because if jQuery is included then Angular will use it internally over its more limited implementation jqLite. This means you can use the entire jQuery API and not just the limited jqLite API everywhere in Angular (typically, in directives).
Technically, you can include jQuery later as well as long as you do it before the DOMContentLoaded event (that's $(document).ready
in jQuery speak).