We suspect you don’t really need another reason to buy a bigger pizza.
But if you do, here’s a great one: You’ll get more pizza for your money if you go with the larger pie.
Quoctrung Bui of Planet Money recently studied this after noticing something while eating lunch with an engineer.
Though the engineer claimed not to be very hungry, he ordered the 12-inch medium pizza instead of the 8-inch small. His reasoning: The medium was more than twice as big as the small and only cost a bit more.
The math of why the bigger pizza is a better deal is straightforward. The area of a circle, the pizza in this case, increases with the square of the radius.
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