A polyhedron is closed a 3-dimensional figure whose faces are all polygons. The prefix "octa-" refers to eight and an octahedron is a polyhedron with 8 faces.
A cube.
For every polyhedron, there is a dual which is a polyhedron that has:a face where the first had a vertex,a vertex where the first had a face,the same number of edges.A self-dual polyhedron is a polyhedron whose dual is the same shape.All pyramids, for example, are self-dual.
Platonic solids.
A triangular prism.
As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons.
No, a sphere is not a polyhedron.A polyhedron is a three-dimensional geometric figure whose sides are polygons.A regular polyhedron is a polyhedron whose faces are all congruent regular polygons.
Start with the definition of a polygon. A polygon is a 2-dimensional (flat) surface all of whose boundaries are straight lines. Then, a polyhedron is a 3-dimensional (solid) object all of whose faces are polygons.
A polyhedron. Examples include pyramids and cubes.
A polyhedron is closed a 3-dimensional figure whose faces are all polygons. The prefix "octa-" refers to eight and an octahedron is a polyhedron with 8 faces.
polygon
A polyhedron is a three-dimensional figure formed by flat surfaces that are bounded by polygons joining along their sides (the faces of the polyhedron).A circle is not a polygon, but we can say that a circle is the limit of a regular polygon with n sides. It means that if n becomes larger and larger, the polygon shape approaches to a circle. A circle is a two dimensional figure as a polygon is, but a three dimensional figure whose base(s) is/are a circle cannot be called a polyhedron.
A polyhedron is a 3-dimensional shape whose faces are all polygons.
A cube.
Triangular prism
An eight-face polyhedron is called an octahedron.
A platonic solid is a special kind of polyhedron. A polyhedron is a 3-D figure whose faces are polygons.In a platonic solid all faces are identical regular polygons. A polyhedron has faces, edges, and vertices. The numbers of each are related by Euler's formula, V+F=E+2