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Heptagonal is an adjective: the answer depends on the noun that it refers to. A heptagonal pyramid, a heptagonal dipyramid or a heptagonal prism or some other heptagonal shape?
A pyramid with a heptagonal base will have seven edges at the bottom, and seven edges around the circumference, so 14 edges in total.
A heptagonal pyramid.
a heptagonal pyramid has 8 faces
there is 13 edges in a heptagonal pyramid.
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A heptagonal based pyramid has: 8 faces 8 vertices & 14 edges
8 edges * * * * * Not necessarily. A triangular pyramid has 6 edges. A heptagonal pyramid had 14 edges and so on.
Seven.
Heptagonal is an adjective: the answer depends on the noun that it refers to. A heptagonal pyramid, a heptagonal dipyramid or a heptagonal prism or some other heptagonal shape?
So there is some of this and some of that so there
A pyramid with a heptagonal base will have seven edges at the bottom, and seven edges around the circumference, so 14 edges in total.
A heptagon is a figure with 7 sides. Also, if by corner you mean edges, we can find that. There's the edges of the heptagonal base. So there's 7. Then we have the edges of where the lateral faces meet each other. There's another 7. You have 14 edges in a heptagonal pyramid. If, in fact, you meant "corners", then we add in the vertex (or apex) of the pyramid. Then you will have 15 "corners".
A heptagonal pyramid.
A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges. 14 edges, 8 vertices.
A regular octahedron and a heptagonal pyramid.A regular octahedron and a heptagonal pyramid.A regular octahedron and a heptagonal pyramid.A regular octahedron and a heptagonal pyramid.