calculus

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What is the percentage increase in size when ordering a 14-inch rather than a 12-inch pizza?

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  1. ratio of area of the two pizzas, taking 12" as 1:
    (14/12)²=1.3611
    Percentage increase in area
    = 1.3611-1
    = 0.3611
    = 36.11% (approx.)

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