
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In $\triangle PQR$, $PQ = PR$, $m\angle PRS = 50^{\circ}$, and $RS \parallel PQ$. What is the number of degrees in $m\angle QRS$?

[asy] pair P,Q,R,S,T; Q = dir(-50); P = dir(-130); S = (.6,0); T = .5 * dir(50);
draw(R--Q--P--T,EndArrow); draw(R--S,EndArrow);
label("$P$",P,W); label("$R$",R,NW);label("$Q$",Q,E);label("$S$",S,E);label("$T$",T,E);
[/asy]

Present the answer in LaTex format: \boxed{Your answer}
user