Question

fill in the sentence below with the description that most specifically applies to the quadrilateral below.

all angles are congruent
it is equilateral and all angles are congruent
opposite sides are of equal measure
no sides are congruent or parallel

Explanation:

The quadrilateral has four right (congruent) angles, opposite sides equal ($x$ and $s$ pairs), but not all sides equal. The most specific description matches its key properties: all angles are congruent, and this is more precise than just opposite sides equal, while the other options are incorrect (it is not equilateral, and sides are congruent/parallel).

Answer:

all angles are congruent, because the quadrilateral has four congruent right angles, with opposite sides equal but not all sides equal, fitting this most specific description.