
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
A square has a side length of 10 meters. It is divided into parts by three straight line segments, as shown in the diagram. The areas of the two shaded triangles are \( P \) square meters and \( Q \) square meters. What is the value of \( P - Q \)?

A) 0  
B) 1  
C) 2  
D) 5  
E) 10

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