
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
From a square steel sheet with a side of 1 meter, triangles are cut off from the four corners, resulting in a regular octagon. Determine the mass of this octagon if the sheet thickness is 3 mm and the density of steel is 7.8 g/cm³. Provide the answer in kilograms, rounding to the nearest whole number if necessary.

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