Question

why should a round pizza kept in a square box

Answer 1

square box is easy to made compare to to circle

Answer 2

I think that it is a question which is not related to science and I don't think there is a scientific phenomena behind it the only thing that I can guess is that around Pizza should be kept in a square box because when a round thing is immersed in a square then we can have space to pull it out if a round Pizza is kept in a round box then it would be difficult for us to move it out as far as I have common sense I think that this is the answer but if there is some scientific reason behind it please tell