
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
In a newly designed shape formed entirely of rectangles, every internal angle measures exactly 90 degrees. The lengths of sides are provided in centimeters. If top side lengths from left to right are 2 cm, 3 cm, 4 cm, and $X$ cm, and the bottom side lengths from left to right are 1 cm, 2 cm, 4 cm, and 6 cm, what is the length of $X$?
A) 2 cm
B) 3 cm
C) 4 cm
D) 5 cm
E) 6 cm

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