
Quote: "with a larger diameter pizza you lose a several cm2 more topping than the smaller pizza, "
Yes, but you lose less proportionally. I.e. in the smaller pizzas, the crust is a bigger proportion of the whole (assuming, as you said, the same width of crust on both)
( , Thu 18 May 2023, 14:31, Reply)

is even more if you discount the crust. If the crust was (to take it to extremes) 5 inches thick, then you would get no toppings at all on the 10" pizzas and 5" of toppings on the 15" pizza.
To nerd out, 1" of discounted crust changes the area of the 10" pizzas from 50 sq inches to 40.5 sq inches, and on the 15" pizza it changes the area from 56.25 sq inches to 49 sq inches. This would mean the ratio changes from 1.125:1 to 1.21:1 (15":10").
Of course, as said here already, stuffed crust changes the whole deal because with the 2 10" pizzas, you get an extra 5 inches of crust compared to the 15". It doesn't IMO make up for the loss of 8.5 square inches of toppings to get 5 inches of stuffed crust. It may even be that the crust on a stuffed crust is larger than on a standard pizza, which just complicates things even more.
Let's just have a curry instead, eh?
( , Thu 18 May 2023, 14:56, Reply)

Not the ratio. You don’t eat ratios. And that’s just the ratio of the radii. The outer ring that the larger pizza generates will always have a larger surface area for the same radial segment distance if it’s further way from the centre, despite have a lower radial ratio for the inner radius. Anyway, I can hear her yelling at me to just buy the family pepperoni and be done with it
( , Thu 18 May 2023, 15:40, Reply)