Why you should almost always order one large pizza instead of two mediums

Many pizza places offer special "deals" if you order two medium pies. You might think that two mediums deliver more cheesy goodness than one large pie, but usually you'd be mistaken. From Primer, a mathematical comparison of two 12" pizzas and one 18" pizza:

Area of two 12" pizzas:

12/2 = 6 6i-6=36 36xI = 113.1 in^2 x 2 = 226.2 in^2

Area of one 18" pizza:

18/2=9 9i-9=81 81xI = 254.5 in^2

And as we know, more pizza is always better.

image: igorovsyannykov (CC0)

(via Cliff Pickover)