
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
When deriving the formula for calculating the area, the circle is divided into several equal parts and cut and spliced into an approximate rectangle. It is known that the perimeter of the rectangle is 20.7 cm, and the length is ____ cm.

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