A heptahedron is a polyhedron with 7 faces, and you can make one with 15 edges.
PENTAGONAL prism
A polyhedron is a solid figure with many plane faces, usually greater than six. A polyhedron that has 7 faces is called a heptahedron.
triangula prism
a shape with 7 vertices
A 7 sided shape is a heptagon
a McNeilapon
A seven-sided shape (polygon) is called a heptagon.
A pentagonal prism has 7 faces, 15 edges and 10 vertices
Ironside - 1967 Double-Edged Corner 7-11 was released on: USA: 6 December 1973
Mike Hammer - 1956 Letter Edged in Blackmail 1-7 was released on: USA: 25 February 1958
PENTAGONAL prism
A polyhedron is a solid figure with many plane faces, usually greater than six. A polyhedron that has 7 faces is called a heptahedron.
pentagonal prism
triangula prism
There can be no such shape. A hexagon is a 2-dimensional shape and so has only one face, six sides and 6 vertices.
(-1)*(-15) = +15 so -15 = + 15/(-1) So 15/(d-7) - 15/(7-d) = 15/(d-7) + 15/[(-1)*(7-d)] = 15/(d-7) +15/[-7+d] = 15/(d-7) + 15/(d-7) = 30/(d-7)
A shape with 7 sides.