what is a vertex in geomtry
Mathematics · Middle School · Thu Feb 04 2021
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In geometry, a vertex (plural: vertices or vertexes) is a point where two or more curves, lines, or edges meet. As a consequence of this definition, the point where two lines intersect to form an angle is the vertex of the angle. In the context of polygons or polyhedral (3D shapes), a vertex is the corner where the polygon's sides or the polyhedron's edges meet.
To understand vertices in different geometric shapes, consider the following examples: - In a triangle, there are three vertices, each one where two sides of the triangle intersect. - In a square, there are four vertices, one at each corner where two sides meet at a right angle. - In a cube, which is a three-dimensional shape, there are eight vertices, each one where three edges of the cube intersect.