What are the types of geometric solids?

Geometric solids can be classified into several types, including polyhedra and non-polyhedra. Polyhedra are three-dimensional shapes with flat polygonal faces, such as cubes, tetrahedra, and octahedra. Non-polyhedra include curved surfaces, such as cylinders, cones, and spheres. Additionally, solids can be categorized based on their properties, such as regular or irregular, convex or concave.