👉 Stumpiness is a concept in mathematics, specifically in topology and geometry. It refers to the presence of a hole or void within a solid object. In other words, it represents the absence of a straight line connecting any two points on the surface of the object. For example, consider a cube with side length 4 units. The cube has three vertices (corners) at (0,0), (0,3), and (3,0). These vertices form the corners of the