A contrasting illustration: The rays do not create an angle when they are parallel to a shared terminal. The group lines up.
A phrase that is not defined is: The plane is an example of a phrase without a formal definition. Because it provides the measurement parameter, a plane relates to angles.
Each line seems to be a little aperture through which light (and heat) may appear to pour from the sun or any other luminous substance.
In conclusion, A correct definition would be: When two non-collinear rays with the same endpoint cross, an angle results. A contrasting illustration: The rays do not create an angle when they are parallel to a shared terminal.
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