\(In quadrilateral $QRTS$, we have $QR = 11$, $QS = 9$, and $ST=2$. Sides $\overline{RQ}$ and $\overline{ST}$ are extended past $Q$ and $S$, respectively, to meet at point $P$. If $PS = 8$ and $PQ = 5$, then what is $RT$?\)
In quadrilateral , we have , , and . Sides and are extended past and , respectively, to meet at point . If and ,then what is ?
+1836 
