A pyramid seems to fit the description.
A polyhedron with a polygon base and triangular sides that all meet at a common vertex is known as a pyramid. The base can be any polygon, such as a triangle, square, or pentagon, and the triangular sides are called lateral faces. The vertex where all the triangular faces converge is referred to as the apex of the pyramid. Each type of pyramid is named based on the shape of its base, such as a triangular pyramid or a square pyramid.
The vertex is a point of polygon or polyhedra that is formed by 2 lines or 3 edges on a polyhedron.
A line that joins any vertex of a polygon (or polyhedron) to any vertex other than itself or adjacent ones is a diagonal.
pyramid
The term that describes the point where at least three sides meet or intersect is called a "vertex." In geometry, a vertex is a corner point of a polygon or polyhedron, where two or more edges converge. In the case of a triangle, for example, it has three vertices.
A polyhedron with a polygon base and triangular sides that all meet at a common vertex is known as a pyramid. The base can be any polygon, such as a triangle, square, or pentagon, and the triangular sides are called lateral faces. The vertex where all the triangular faces converge is referred to as the apex of the pyramid. Each type of pyramid is named based on the shape of its base, such as a triangular pyramid or a square pyramid.
A pyramid fits the given description
The vertex is a point of polygon or polyhedra that is formed by 2 lines or 3 edges on a polyhedron.
A pyramid has a polygonal base with all other sides being triangles. As the Egyptians famously demonstrated, a common pyramid has a square base with four triangles meeting at a vertex, but any polygon - regular or irregular - can be used as the base of such a polyhedron.
A polyhedron of which one face is a polygon of any number of sides, and the other faces are triangles with a common vertex.
A line that joins any vertex of a polygon (or polyhedron) to any vertex other than itself or adjacent ones is a diagonal.
pyramid
pyramid An pyramid is a geometric solid of the shape made famous by the royal tombs of ancient Egypt. It is a solid whose base is a polygon and whose lateral faces are triangles with a common vertex
A triangle has fewer than 4 vertices.
The definition of vertices is the plural vertex. A vertex is point of intersection of two or more lines. A vertex can also be used to describe the angular point of a polygon, polyhedron, or other shape.
a square a rectange a triangle a hexagon an octogon a polygon
The term that describes the point where at least three sides meet or intersect is called a "vertex." In geometry, a vertex is a corner point of a polygon or polyhedron, where two or more edges converge. In the case of a triangle, for example, it has three vertices.