
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 keystone arch is utilized in a construction project, consisting of congruent isosceles trapezoids arranged circularly. If the arch is designed using 12 trapezoids, and each trapezoid has its non-parallel sides extended to meet at a common center point above the arch, what is the measure of the larger interior angle, \(x\), in degrees of a single trapezoid?
A) 100º
B) 97.5º
C) 95º
D) 105º

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