
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
Consider the ellipse $\dfrac{x^2}{9} + \dfrac{y^2}{25} = 1$ with foci $F\_1$ and $F\_2$. If $AB$ is a chord of the ellipse passing through focus $F\_1$, find the perimeter of triangle $ABF\_2$.

A) $20$
B) $12$
C) $10$
D) $6$

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