Pyramid
It is not any kind of simply connected solid figure because it does not satisfy the Euler characteristic which requires thatFaces + Vertices = Edges + 2It is not any kind of simply connected solid figure because it does not satisfy the Euler characteristic which requires thatFaces + Vertices = Edges + 2It is not any kind of simply connected solid figure because it does not satisfy the Euler characteristic which requires thatFaces + Vertices = Edges + 2It is not any kind of simply connected solid figure because it does not satisfy the Euler characteristic which requires thatFaces + Vertices = Edges + 2
Bipyramids are a class of polyhedra with more faces than vertices.
I think a pentagonal pyramid * * * * * No it is not any kind of polyhedron because it does not satisfy the Euler characteristic.
Pyramid
A cube has six equal square faces.
A parallelepiped, of which a cuboid is a special kind. And a cube is a special kind of cuboid.
A platonic solid is a special kind of polyhedron. A polyhedron is a 3-D figure whose faces are polygons.In a platonic solid all faces are identical regular polygons. A polyhedron has faces, edges, and vertices. The numbers of each are related by Euler's formula, V+F=E+2
A rectangular prism (which is a kind of hexahedron).
A cube is a solid figure called a polyhedron. A polyhedron is a solid figure with all flat faces. So a cone would be a solid figure but not a polyhedron becasue it has a curve and does not have all flat faces.
octahedron
a geometric figure having a specified kind or number of faces.