quadrilateral PQRS with diagonals PR and SQ that intersect at point T

If quadrilateral PQRS is a rectangle, then which of the following is true?

∠PSQ ≅ ∠QSR
segment SR ≅ segment RQ
segment PS ≅ segment PR
segment SQ ≅ segment PR

If quadrilateral PQRS is a rectangle, then segment SR ≅ segment RQ is true. In a rectangle, opposite sides are congruent, so segment SR is congruent to segment RQ.