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Question
Give a definition of the following term. Are there other terms that need to be defined first? What are they, and how might you define them?
line segment
Solution
Yes, we need to understand terms like point, line, ray, angle, plane, circle, and quadrilateral before defining the required terms.
A line segment is a part of a line with a definite length and two end points. In the figure, a line segment has end points A and B. It is written as `bar(AB)` or `bar(BA)`.
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Give a definition of the following term. Are there other terms that need to be defined first? What are they, and how might you define them?
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