14 vertices
i have no clue * * * * * An octahedron is the name for a non-specific shape. It could, as described above, be a di-rectangular pyramid with 6 vertices. Or it could be a heptagonal pyramid, in which case it has 8 vertices. Or it could be a hexagonal prism, in which case it has 12 vertices. There are other octahedraons.
There can be a heptagonal prism or an octagonal prism, but there is no such thing as a hectagonal prism.
An octahedron is the name for a non-specific shape. It could, as described above, be a di-rectangular pyramid with 6 vertices. Or it could be a heptagonal pyramid, in which case it has 8 vertices. Or it could be a hexagonal prism, in which case it has 12 vertices. There are other octahedraons.
A pentagonal prism has 10 vertices. A rectangular prism has 8 vertices. Therefore, a pentagonal prism has 2 more vertices than a rectangular prism.
A decagonal prism has 20 vertices: 10 at each end.
It has 14 vertices
A prism with 9 faces is a heptagonal prism. That has 14 vertices.
A heptagonal what? Prism, pyramid or something else?
14. And it is better known as a heptagonal prism.
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A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
Heptagonal prism
A heptagon is a 7-sided polygon, so a heptagonal prism is a 3D version of that (9 sides, 21 edges, 14 vertices).
A heptagonal prism gas 21 edges.
Heptagonal Prism
An heptagonal based prism, also known as a heptagonal prism, has two faces that are perpendicular to each other. These faces are the bases of the prism, which are heptagons in this case. The perpendicular edges are the edges that connect the vertices of the bases at right angles, resulting in a total of 14 perpendicular edges in a heptagonal prism.
A heptagonal prism has two 7-sided bases.