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A pizza size calculator compares the area and value of different pizza sizes, revealing whether a large pizza is actually better value than two mediums. Area scales with the square of the radius, so a 16" pizza is not just 33% bigger than a 12" — it's 78% more pizza.

단계별 가이드

1. 1Pizza area = π × (diameter/2)² = π × r²
2. 2Value per square inch = Price / Area
3. 3Compare cost per cm² or cost per square inch across sizes

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