A triangular pyramid has
4 faces
4 vertices and
6 edges.
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Ah, a triangular pyramid is a beautiful shape indeed. It has 6 edges and 4 vertices. Each edge connects two vertices together, creating a strong and harmonious structure. Just like in painting, every element in geometry plays a special role in creating a balanced and lovely composition.
A heptagonal pyramid has 7 triangular faces, 7 vertices, and 10 edges. The base of the pyramid is a heptagon, which has 7 vertices. Each of the triangular faces shares an edge with the base, resulting in a total of 10 edges. The apex of the pyramid adds one additional vertex, bringing the total to 7 vertices.
Short answer, yes. Long answer, a triangular prism has two triangular faces, its bases, and three rectangular faces, its sides, which connect the two faces. Unfolding the prism into a net reveals a rectangle divided into three rectangular sections (these are the three rectangular faces) and two congruent triangles attached along a common edge to one of these rectangles (these are the two triangular faces).
A cone. Except that the singular is vertex - there is no such thing as a vertice.
A cone or a bulged-out cone.