[NeoTar]

That’s very much a cultural thing. An average European pizza is more of a ‘personal’ pizza and 8 or 10 inches in diameter. Twelve slices would be too much.

I propose the Imperial/English pizza theorem. The optimal number of slices for a pizza is equal to the size in inches.

[hexane360]

Unfortunately, that guarantees the arc length of the slice to be constant (at pi inches), but not the total area (= d * 1/2 in). I believe this is why larger pizzas make more sense to cut into squares, as long thin pieces are harder to slice and to eat.

[rootusrootus]

Yeah, that's my exclusion for small pizzas. We only do personal pizzas for the kids. The rest of the family shares a larger one (or two, or however many).

[HWR_14]

A giant pizza cut so that each slice is a full meal (maybe two if very hungry) is optimal.Eating a slice of pizza should be enough.