
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 the "Nine Chapters on the Mathematical Art," a triangular pyramid with all faces being right-angled triangles is referred to as a "bie nao." It is given that in triangular pyramid $M-ABC$, $MA\perp$ plane $ABC$, and $MA=AB=BC=2$. Find the surface area of the circumscribed sphere around the pyramid.

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