Art style: Comic Book.
The inside of the square is now shaded with a vibrant color to represent its area. The text 'Area Formula' is displayed, followed by 'A = a²' and the example 'a = 5 cm → A = 25 cm²'. The design is consistent with the previous scenes.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Comic Book" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Comic Book". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Comic Book" idiom, not in any other medium.
