Why are quadrangles only has 4 sides?

Answer 1

because, along time ago in ancient Greece when math was just developing. quadrilius anglus invented all shapes. every shape was invented by this man. 2D, 3D, triangles, cirlces and basically everything. However quadrilius was a very sad man, even though he created all the shapes all he wanted was his father's love and respect. he needed to fill the hole in his heart where his father's love should've been. then he invented the square and diamond and every four angled shape, he decided to name it after himself. and thus the quadrangle was born.