lines

Lines are straight or curved marks that extend indefinitely in both directions, defining shapes, boundaries, or paths. In geometry, a line is the shortest distance between two points and has no thickness or width. They can be used to create angles, measure distances, or outline objects. Lines are fundamental in drawing, maps, and diagrams because they guide the eye and organize space. Whether in art or mathematics, lines help us understand and communicate the structure of shapes and relationships between objects clearly and precisely.