Pizza Sizes Help

I usually buy a 12 inch pizza, but would I get more or less than 12 inches in this:

10 inch pizza
Half an 8 inch pizza.

Thanks +rep.

you'd get less (i think) because 12 inches is the span of it or the length between the middle and the edge
so 10 inches would be smaller
and half an 8 ive never heard of sorry :(

Yeah, 10 inches would be smaller, but I dunno whether the half of an 8 inch pizza makes up the missing 2 inches from a 12 inch pizza. haha.

A 12 inch is bigger.

Obviously 12inches is bigger and 10 and 8 is smaller. If your getting like a 10'' and a 4'' then probably less, if you get half an 8'' pizza then it will probably be the same or a little more.

Thanks. Sorry I'm rubbish with circle maths.