A quadrilateral is described as having a set of parallel lines and two congruent angles. Which of the following is it required to be? Check all that apply. (When thinking about what a shape is required to be consider this example: A quadrilateral with 4 right angles is REQUIRED to be a rectangle because that's the definition of a rectangle. It COULD be a square, but doesn't have to be because I didn't say anything about all its sides being the same length)