Why is a ball a sphere and not a cube?

Answer 1

Because a ball has no edges.

Answer 2

Well, sweetie, a ball is a sphere because a sphere is defined as a perfectly round geometrical object in three-dimensional space. It's got the same distance from its center to all points on its surface, giving it that nice, smooth round shape. If a ball were a cube, it would roll all wonky and not be very good at being a ball now, would it?

Answer 3

A ball is a sphere rather than a cube because a sphere is the shape with the least surface area for a given volume. This is known as the isoperimetric inequality, which states that among all shapes with the same volume, a sphere has the smallest surface area. This property makes a sphere the most efficient shape for enclosing a given volume, which is why objects like balls, bubbles, and planets tend to form into spheres in nature. In contrast, a cube has more surface area for a given volume compared to a sphere, making it less efficient in terms of minimizing surface area.