It can be a heptagon (heptagonal pyramid), hexagon (hexagonal prism), square (square based bipyramid). There are versions with pentagonal or triangular bases but I cannot think of their names.
An octahedron is a 3D shape with 8 sides.
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
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Some simple octahedra area regular octahedron (also known as a square-based dipyramid or triangular antiprism)heptagon-based pyramidhexagon-based prism.So an octahedron is not a single shape.
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 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.
An octahedron is a closed solid shape with eight polygonal faces.
The equivalent of a octahedron as a 2D shape is an 8 sided octagon.
An octahedron is a 3D shape with 8 sides.
In geometry, a octahedron is a poly-hedron/ multi-faced shape with eight sides.
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 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.
An octahedron is any solid shape with eight flat faces.
An octahedron is a closed solid shape with eight polygonal faces.