It can be the top of a lamp or the top of a candle.
Heptagonal Prism
A cuboid or a pyramid with a heptagonal base are two possibilities.
A heptagonal prism is a three-dimensional geometric shape with two parallel heptagonal bases and seven rectangular lateral faces. Its properties include having 14 edges, 10 vertices, and 7 faces. The lateral faces are perpendicular to the bases, and the height of the prism is the distance between the two heptagonal bases. The volume can be calculated by multiplying the area of the heptagonal base by the height of the prism.
A heptagonal prism gas 21 edges.
There are many possible shapes. For example, a heptagonal pyramid, a hexagonal prism, a rectangular dipyramid.
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 heptagonal pyramid
A heptagonal pyramid.
It could be a heptagonal prism.
Heptagonal pyramid * * * * * No. A heptagonal pyramid has 8 vertices. You need a hexagonal pyramid or a pentagonal dipyramid for 7 vertices. Or, in 2d, a heptagon.
Heptagonal Prism
A cuboid or a pyramid with a heptagonal base are two possibilities.
A heptagonal prism is a three-dimensional geometric shape with two parallel heptagonal bases and seven rectangular lateral faces. Its properties include having 14 edges, 10 vertices, and 7 faces. The lateral faces are perpendicular to the bases, and the height of the prism is the distance between the two heptagonal bases. The volume can be calculated by multiplying the area of the heptagonal base by the height of the prism.
A heptagonal prism gas 21 edges.
Strictly speaking, no. Perhaps you can refer to it as a heptagonal shape?
There are many possible shapes. For example, a heptagonal pyramid, a hexagonal prism, a rectangular dipyramid.
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.