An angle is the set of points which are part of two lines that intersect at a specific point. An angle is made up of two “half lines” called rays that begin at the shared point, called the vertex, and extend away from that point. An angle can be denoted simply by the angle’s vertex or by three points: one from one ray, the point of intersection, and one from the second ray.
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Last updated: 02/19/2018
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