AEDC is a private non-profit corporation (IRS code 501(c)(6)), operating since 1987. It exists to encourage growth and diversity in the Anchorage economy, promote a favorable business climate and improve the standard of living of Anchorage residents.
In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, three of which meet at each corner or vertex. It has six edges and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra and the only one that has fewer than 5 faces. The tetrahedron is the three-dimensional case of the more general concept of a Euclidean simplex.
Since the base is hexagonal, the pyramid will have one additional triangular face for each edge of the base. That makes for a total of 7 faces: 6 triangular faces plus one hexagonal face. The base provides 6 vertices, and the top of the pyramid adds 1 more, for a total of 7 vertices. There are 6 edges made up by the base, and 6 more shared edges extending from there to the top for a total of 12 edges. Comments.