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1. ### www.splashlearn.com › math-vocabulary › geometryWhat is Polyhedron? - Definition, Facts & Example

Vertex: It is the point of intersection of the edges of the polyhedron. A vertex is also known as the corner of a polyhedron. A vertex is also known as the corner of a polyhedron. The plural of vertex is called vertices.

2. ### www.splashlearn.com › math-vocabulary › geometryWhat is Ray? - Definition, Facts & Example

Definition of Ray explained with real life illustrated examples. Also learn the facts to easily understand math glossary with fun math worksheet online at SplashLearn.

3. ### en.wikipedia.org › wiki › Vertex_coverVertex cover - Wikipedia

In graph theory, a vertex cover (sometimes node cover) of a graph is a set of vertices that includes at least one endpoint of every edge of the graph.In computer science, the problem of finding a minimum vertex cover is a classical optimization problem.

4. ### study.com › academy › lessonPoint Estimate in Statistics: Definition, Formula & Example ...

Sep 30, 2021 · Point estimate in statistics is calculated from sample data and used to estimate an unknown population parameter. Learn about the definition, formula, and real-world examples of point estimate in ...

5. ### study.com › academy › lessonDijkstra's Algorithm: Definition, Applications & Examples ...

Jan 10, 2022 · Dijkstra's algorithm is used to find the shortest path from a starting node to another node in a graph. Explore the definition and examples of Dijkstra's algorithm and learn how to use it on ...

6. ### en.wikipedia.org › wiki › Tree_(graph_theory)Tree (graph theory) - Wikipedia

An internal vertex (or inner vertex or branch vertex) is a vertex of degree at least 2. Similarly, an external vertex (or outer vertex , terminal vertex or leaf ) is a vertex of degree 1. An irreducible tree (or series-reduced tree ) is a tree in which there is no vertex of degree 2 (enumerated at sequence A000014 in the OEIS ).