
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
The measures of the interior angles of a convex polygon of $n$ sides are in arithmetic progression. If the common difference is $10^\circ$ and the largest angle is $180^\circ$, find the value of $n$.
A) 7
B) 8
C) 9
D) 10
E) 12

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