in the figure center of the circle is point O and OPR =50° AND PQR + PRQ
help me on this

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
[tex] \textbf{The required answer is} [/tex] ~
[tex]\qquad \sf \dashrightarrow \:\angle PQR + \angle PRQ = 90°[/tex]
Refer to the attachment for solution -,-