
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
Let point $P$ be a point on the hyperbola $x^{2}- \frac{y^{2}}{12}=1$, and $F_1$, $F_2$ be the left and right foci of the hyperbola, respectively. If the area of $\triangle PF_1F_2$ is $12$, calculate the measure of $\angle F_1PF_2$.

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