Given that a quadrilateral PQRS is a parallelogram, PQ and RS are opposite sides, PQ = 6x + 10, RS = + 12, and QR = 31 which of the following statements are correct?. More than one answer may be correct.


- Opposite sides are congruent

- The diagonals are perpendicular

- The parallelogram PQRS is a square

- Perimeter = 106

- PS = 31

- x = 4

- None of these answers are correct