An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Some of these have no parallel edges whereas a right hexagonal prism has 3 quartet of parallel edges and one sextet.
Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.
the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P
According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.
None of the edges of a triangular pyramid is parallel to any of its other edges.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Some of these have no parallel edges whereas a right hexagonal prism has 3 quartet of parallel edges and one sextet.
Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.
An octahedron is any solid shape with eight flat faces.
There is no 3d shape made up of octagons. An octahedron can be one of several different shapes - but without ANY octagonal faces. For example, A hexagonal pyramid (8 faces, 18 edges, 12 vertices) A heptagonal pyramid (8 faces, 14 edges, 8 vertices) A quadrilateral dipyramid (8 faces, 12 edges, 6 vertices)
the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P
According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.
In any cube, you can sort the edges into three sets, with 4 edges in each set. All four edges in a set are parallel to each other, and none of the edges in one set is parallel to any of the edges in any other set.
None of the edges of a triangular pyramid is parallel to any of its other edges.
A pyramid never has parallel faces. Any two faces intersect.
Many solids have no rectangular faces, including such forms as the hexagonal pyramid and the regular octahedron.
The two circles at the top and bottom of the cylinder are parallel faces.
An octahedron can have any number from 6 to 12 vertices.