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Divide the number of vertices by 3.

Find the name of the polygon with that many sides.

The prism has that polygon as a base.

For example, a prism with 24 vertices.

Divide by 3 so that is 8.

An 8 sided polygon is an octagon.

The name is an octagon-based prism.

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Q: How is the number of vertices for a prism related to the name of the prism?

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Twice the name. A prism with an n-sided base will have 2n vertices.

A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.

A triangular prism has 5 faces, 9 edges and 6 vertices

the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P

a prism always have 6 or 8 edges and vertices learn math dang * * * * * Good point! Learn math - or maths even. A prism is a generic name for a 3-d shape with two congruent polygonal "bases" with n-sides each, and n rectangles joining them together. That means a prism with a n-polygon base has 3n edges and 2n vertices.

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Twice the name. A prism with an n-sided base will have 2n vertices.

A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.

A prism is often named according to its base: one of the pair of congruent and parallel polygonal faces. In that case, if the base is a polygon with n sides, then the prism has 2*n vertices.

their bases and their vertices.

An hexagonal prism would fit the given description

A triangular prism has 5 faces, 9 edges and 6 vertices

Cube / rectangular prism

the shape that has 8 faces , 18 edges , and 12 vertices is simply a hexagonal prism not a pyramid my butt :P

a prism always have 6 or 8 edges and vertices learn math dang * * * * * Good point! Learn math - or maths even. A prism is a generic name for a 3-d shape with two congruent polygonal "bases" with n-sides each, and n rectangles joining them together. That means a prism with a n-polygon base has 3n edges and 2n 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.

A triangular prism would fit the given description.

Subtract 1 from the number of vertices. Find the name of the polygon with that many sides. The pyramid has that polygon as its base. So, for example, 7 vertices. Subtract one and that gives 6. A six sided polygon is a hexagon. So the shape is a hexagon based (or hexagonal) pyramid.