
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
To protect an offshore oil platform, 8 radars need to be distributed around it, each with a coverage area of a circle with radius $r = 15$ km. Determine the maximum distance from the center of the platform at which the radars should be placed to ensure that a ring of coverage with a width of 18 km is provided around the platform. Calculate the area of this coverage ring.

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