Because domino’s is the best place to have pizza & they manufacture only square boxes.
You all very well know that when we divide a circle it becomes triangle.
That is the rule of maths .I hate maths but I love pizza.
However pizza has lots of fats in it.
It makes our tummy bigger & rounder.
Hence if we eat more pizza we won’t be able to sit on square chairs & it is but obvious that our round stomach cannot be cut, definitely it cannot be triangular .
However now let’s shift our topic to round pizza again which is when cut becomes triangle this is not a topic to discuss though.
I love to eat I live to eat not eat to live hence I love round pizza kept in square box & cut into triangular pieces.