
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
We are traveling by plane. Looking out of a window that is 20 cm from our eyes, we spot two ships in the direction of the lower corners of the 25 cm x 40 cm window. We know that the plane is flying at an altitude of 10.3 km, and our eye level is at the horizontal midpoint of the window. How far apart are the two ships?

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