
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
An isosceles trapezoid has legs each 20 cm, two diagonals each 25 cm, and the longer base is 30 cm. Calculate the area of the trapezoid in square centimeters.

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