An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The various octahedra have faces which may be triangles, quadrilaterals, pentagons, hexagons or heptagons. Any one of these could be a base.
A regular tetrahedron. octahedron, dodecahedron.
An octahedron is not a polygon. A polygon is a two dimensional shape. An octahedron is a three dimensional shape and is classified as a polyhedron.
An octahedron is a closed solid shape with eight polygonal faces.
An octahedron is a 3D shape with 8 sides.
The equivalent of a octahedron as a 2D shape is an 8 sided octagon.
The octahedron is a shape with eight triangular faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The simplest octahedron to make is probably the heptagon based right pyramid. The net for this shape is a regular heptagon with seven identical triangles attached to its edges. If the triangles are folded to meet at a point above the heptagonal base you will have an octahedron.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons.
An octahedron is any solid shape with eight flat faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces/bases which are triangles, quadrilaterals, pentagons, hexagons or heptagons.
octahedron
8 octagons