A three-dimensional shape with flat polygonal faces, straight edges, and sharp corners or vertices is called a polyhedron. Common examples are cubes, prisms, pyramids. However, cones, and spheres are not polyhedrons since they do not have polygonal faces. The plural of a polyhedron is called polyhedra or polyhedrons.
Answers & Comments
Answer:
In geometry, a polyhedron is simply a three-dimensional solid which consists of a collection of polygons, usually joined at their edges.
Step-by-step explanation:
A three-dimensional shape with flat polygonal faces, straight edges, and sharp corners or vertices is called a polyhedron. Common examples are cubes, prisms, pyramids. However, cones, and spheres are not polyhedrons since they do not have polygonal faces. The plural of a polyhedron is called polyhedra or polyhedrons.