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A heptagonal what? Prism, pyramid or something else?
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.
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It has 9 faces It has 21 edges Its end faces are parallel to each other
A heptagonal prism gas 21 edges.
Well, honey, an heptagonal prism has 7 faces, and each face has 2 pairs of parallel edges. So, if you do the math, that's a total of 14 pairs of parallel edges in an heptagonal prism. Math doesn't have to be boring, darlin', it can be sassy too!
There are 7 or 9, depending on the bases.
A heptagonal prism has 20 edges.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
Nine.
A heptagonal based pyramid has: 8 faces 8 vertices & 14 edges
There can be a heptagonal prism or an octagonal prism, but there is no such thing as a hectagonal prism.