
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
Three congruent circles of radius  $2$  are drawn in the plane so that each circle passes through the centers of the other two circles. The region common to all three circles has a boundary consisting of three congruent circular arcs. Let  $K$  be the area of the triangle whose vertices are the midpoints of those arcs. If  $K = \sqrt{a} - b$  for positive integers  $a, b$ , find  $100a+b$ .

*Proposed by Michael Tang*

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