# What Is a Vertex Angle?

When you are talking about triangles there are three angles. The angle that is opposite of the base of the triangle is called the vertex angle.
What Is a Vertex Angle?
A vertex is the common point where two or more lines of an angle meet. The vertex is the point at which the angle is measured. The plural form of vertex is "vertices." For example, a triangle has three vertices and a square has four vertices. It is easy... More »
Difficulty: Easy
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Q&A Related to "What Is a Vertex Angle"
 A vertex angle is an angle found in all geometric figures in which two line segments become connected forming an angle that is measured from the inside walls of the two connecting http://answers.ask.com/Science/Mathematics/what_is...
 1. Find the slopes of the lines that contains each segment. The slope of a line is calculated by dividing the change in y-coordinates by the change in x-coordinates: slope = (y2 - http://www.ehow.com/how_8443661_vertex-angle.html
 The letter E would be at the vertex. The two lines enclosing the angle E would be ED and EF. Usually, to make it quite clear we would call angle E by the description "angle DEF http://wiki.answers.com/Q/What_is_the_vertex_of_th...
 ( ′vər′teks ′aŋ·gəl ) (mathematics) In a triangle, the angle opposite the base. http://www.answers.com/topic/vertex-angle-mathemat...
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A vertex angle is a point of intersection of two rays that have a common endpoint. It is measured in degrees. In a polygon, the vertex angle can be any corner. ...
A vertex angle is an angle found in all geometric figures in which two line segments become connected forming an angle that is measured from the inside walls of ...
In geometry, a vertex angle is the angle associated with a vertex of a polygon. The vertex angle in a polygon is measured by the interior side of the vertex. The ...