Nine.
A heptagonal what? Prism, pyramid or something else?
A prism with 9 faces is a heptagonal prism. That has 14 vertices.
It has 9 faces It has 21 edges Its end faces are parallel to each other
Heptagonal is an adjective, not a noun! The answer will depend on whether you mean a heptagonal pyramid, a heptagonal bipyramid, a heptagonal prism or whatever.
A heptagonal prism gas 21 edges.
l
A heptagonal what? Prism, pyramid or something else?
There can be a heptagonal prism or an octagonal prism, but there is no such thing as a hectagonal prism.
l
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 prism with 9 faces is a heptagonal prism. That has 14 vertices.
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.
i don't know but i don't care
It has 9 faces It has 21 edges Its end faces are parallel to each other
Heptagonal is an adjective, not a noun! The answer will depend on whether you mean a heptagonal pyramid, a heptagonal bipyramid, a heptagonal prism or whatever.
A heptagonal prism gas 21 edges.