Geometric structures refer to the arrangement and organization of shapes and forms in space. They can be found in various fields, including mathematics, architecture, and art. Common examples include triangles, squares, and circles, which serve as the building blocks for more complex designs. In mathematics, geometric structures are studied through geometry, which explores properties, relationships, and measurements of these shapes. In architecture, geometric structures influence the design and stability of buildings, while in art, they contribute to visual composition and aesthetics.