Edges are the boundaries or lines 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 form of three-dimensional objects, making them essential in both mathematics and design. In everyday life, edges can be found in various contexts, such as the edges of a table or the edges of a piece of paper. They can be sharp or smooth, depending on the material and how it has been finished. Understanding edges is important in fields like architecture and manufacturing.