
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 length of a rectangle is four times its width. The perimeter of the rectangle is 200 cm. Calculate the area of the rectangle and find the length of its diagonal.

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