
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 rectangle has length 40 and width 24. Points $G$ and $H$ are the midpoints of vertical side $AD$ and horizontal side $AB$, respectively. Calculate the area of quadrilateral $AGHB$.
A) 460 sq units
B) 480 sq units
C) 500 sq units
D) 520 sq units

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