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.
Chat with our AI personalities
A heptagonal what? Prism, pyramid or something else?
Nine.
Faces = 8 Edges = 14 Corners = 8
Faces: 14 Vertices: 9 Edges: 21
It has 9 faces It has 21 edges Its end faces are parallel to each other