The definition to make it more accurate is the common endpoint is called the vertex of the angle and the two rays are called the sides of the angles
Point is an example of undefined term
Given statement is an angle is two collinear rays with a common endpoint
We need to find an example that contradicts this definition and an example of an undefined term
An example that contradicts this definition is
An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.
An an example of an undefined term is point
A point represents a location and has no dimension (size). It is marked with a capital letter and a dot.
An angle is formed by two rays which begin at the same point The rays are called the sides of the angle; the point of meeting is called the vertex.
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