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An octahedron shape is one which has 8 faces. Since it is a prism it must be a hexagonal prism (2 hexagons and 6 rectangles = 8 faces). And a hexagonal prism has 2*6 = 12 vertices.
They have 6
It has 12 vertices
7 vertices
4 * * * * * Actually, a pentagon has 5 vertices.
Add one to a hexagons number of vertices
1 hexagonal prism = 8 faces (2 hexagons, 6 rectangles), 18 edges, 12 vertices.
A hexagonal prism has hexagons at each end whereas a hexagonal pyramid has a hexagonal base and an apex. The numbers of faces, shapes of the faces, numbers of edges and vertices are all different.
A hexagonal prism has hexagons at each end whereas a hexagonal pyramid has a hexagonal base and an apex. The numbers of faces, shapes of the faces, numbers of edges and vertices are all different.
Faces: 8 Edges: 18 Vertices: 12 Dual: hexagonal bipyramid Face types: 2 hexagons, 6 rectangles
At first sight I thought a hexagonal prism but that does not have 7 faces.
An octahedron shape is one which has 8 faces. Since it is a prism it must be a hexagonal prism (2 hexagons and 6 rectangles = 8 faces). And a hexagonal prism has 2*6 = 12 vertices.
To find the number of vertices on any pyramid, take the number of corners on the base and add 1 (for the top) A hexagonal based pyramid has 7 vertices (6 for the hexagon, 1 for the top) I suspect you might mean "hexagonal prism" though. In which case, for prisms, you double the number of corners in the 2D shape. A hexagonal prism has 12 vertices (6 for the hexagons at each end.)
the hexagonal pyramid has 7 vertices
there are 5 vertices in pentagon
A hexagonal prism has 18 edges and 12 vertices.
A 6 sided hexagon has 6 vertices and so 3 hexagons will have 3*6 = 18 vertices