
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
Dots are spaced one unit apart, both horizontally and vertically. Determine the number of square units enclosed by the following polygon:
[asy]
size(150);
pair a=(0,0), b=(20,0), c=(40,0), d=(60,0);
pair e=(0,20), f=(20,20), g=(40,20), h=(60,20);
pair i=(0,40), j=(20,40), k=(40,40), l=(60,40);
pair m=(0,60), n=(20,60), o=(40,60), p=(60,60);
dot(a);
dot(b);
dot(c);
dot(d);
dot(e);
dot(f);
dot(g);
dot(h);
dot(i);
dot(j);
dot(k);
dot(l);
dot(m);
dot(n);
dot(o);
dot(p);
draw(a--d--p--m--a);
[/asy]

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