Answer:
In a triangle, the bisector from an interior angle divides the opposite side into two segments whose ratio of lengths is equal to the ratio of the lengths of the adjacent sides.
PS/SR=QP/QR
PS/5 = 31.2/26
26*PS=5*31.2
26*PS=156
PS = 156/26=6
x=PR=PS+SR = 5+6=11
Explanation: