Given that <PQR = 26, we can use the fact that opposite angles are equal in a parallelogram to find <PQS.
Since PQRS is a parallelogram, we have:
<PQS = <QRS
Also, we know that the sum of angles in a triangle is 180 degrees. Therefore, we can find <QRS by subtracting <PQR from 180 degrees and dividing the result by 2.
<QRS = (180 - <PQR)/2
Substituting <PQR = 26, we get:
<QRS = (180 - 26)/2 = 77
Therefore, <PQS = <QRS = 77 degrees.