( ′vər′teks ′aŋ·gəl ) (mathematics) In a triangle, the angle opposite the base.
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An angle can be defined as two rays or two line segments having a common end point. The endpoint becomes known as the vertex (shared endpoints) . An angle occurs when two rays meet
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In an isosceles triangle, the angle formed by the two legs of equal length
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The point about which an angle is measured is called the angle's vertex, and the angle associated with a given vertex is called the vertex angle. In a polygon, the (interior, i.e.
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