
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
In a regular quadrangular pyramid, the side of the base is 6 dm, and the height is 4 dm. Find the lateral surface area of the truncated pyramid that is cut off from the original by a plane parallel to its base and 1 dm away from it.

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