Octahedron.
It is a triangular prism.
A triangular prism ! It has a triangular face at each end, a rectangular base and two adjoining rectangular faces. It actually has nine edges and six corners.
A cube
A tetrahedron, or triangle-based pyramid, has four corners, four faces and six edges.
A tetrahedron has four vertexes and four faces and six edges.
A tetrahedron.
A hexagonal based pyramid seems to fit the given description
The shape with 5 faces, 9 edges, and 6 vertices is a triangular prism. It has two triangular faces and three rectangular faces, totaling five faces. The nine edges consist of three edges from each triangular face and three connecting edges between the triangles. Additionally, it has six vertices, which are the corners of the triangular bases and their connection points.
Pretty simple really: Vertices are corners and edges are boundaries so, a hexagon has six of each.
The shape you are describing is a triangular prism. A triangular prism has two triangular faces at the ends and four rectangular faces connecting the corresponding sides of the triangles. It has a total of six vertices, which are the corners where the edges meet.
a pentagonal pyrimad
There are four faces, six edges and four vertices.Remember,faces are the flat sides.Edges are the lines where two of the faces meet.Vertices are the corners where three or more of the faces meet.