Why do humans build with rectangular shapes instead of hexagons?

It is easier to get a 90 degree angle than the 120 degree internal angle of a perfect hexagon. It is also easier to build 4 walls rather than 6. This also means you would only need to build less pillars or columns to hold the structure. Look at most of the stuff inside a house, a desk is rectangular, as well as your dinning table, bed, cabinets, fridge, couch, chairs, etc. The best way of maximizing the space for such items is having a rectangular room.

It is easier to get a 90 degree angle than the 120 degree internal angle of a perfect hexagon. It is also easier to build 4 walls rather than 6. This also means you would only need to build less pillars or columns to hold the structure. Look at most of the stuff inside a house, a desk is rectangular, as well as your dinning table, bed, cabinets, fridge, couch, chairs, etc. The best way of maximizing the space for such items is having a rectangular room.

It's easier.

Beside it is easier , but look into functionality, the less angles the more efficiently , and increase utilization of the structure

Beside it is easier , but look into functionality, the less angles the more efficiently , and increase utilization of the structure