why do we build rectangular houses and not round houses?

Question

I mean houses in Europe and America have 4 corners (or more) whereas in Africa Natives build round houses (also in Asia afaik).
Do they have any advantages or disadvantages? Or is one solution cheaper, …?

In: 50

Answer 1

Straight edges of building material are MUCH cheaper and easier to manufacture than continuously rounded or curved edges of wood or other material