Edges are the lines or boundaries where two surfaces meet. In geometry, an edge is a straight line that connects two vertices in a shape, such as a cube or a pyramid. Edges help define the structure and outline of three-dimensional objects, making them essential for understanding their form. In everyday life, edges can be found in various contexts, such as the edge of a table or the border of a piece of paper. They can be sharp or smooth, depending on the object. Edges play a crucial role in design, safety, and functionality in both natural and man-made environments.