
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
If one side of a rectangle is $a + b$ and another is $a - b$, what is the area of the rectangle given that one of its diagonals is $\sqrt{(a+b)^2 + (a-b)^2}$?
A) $a^2 + b^2$
B) $2a^2+2b^2$
C) $a^2 - b^2$
D) $2(a^2 - b^2)$

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