eight(8)
5
a heptagonal pyramid has 8 faces
8 faces
A heptagonal what? Prism, pyramid or something else?
Nine.
Two bases and three vertical sides make 5 faces.
A heptagonal based pyramid has: 8 faces 8 vertices & 14 edges
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50 stupid
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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.
Faces = 8 Edges = 14 Corners = 8