
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 centers of the seven circles shown all lie on the same line. The four smaller circles have radius \(1 \mathrm{~cm}\). The circles touch, as shown.
What is the total area of the shaded regions?
A \(\pi \mathrm{cm}^{2}\)
B \(2 \pi \mathrm{cm}^{2}\)
C \(3 \pi \mathrm{cm}^{2}\)
D \(4 \pi \mathrm{cm}^{2}\)
E \(5 \pi \mathrm{cm}^{2}\)

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