Question

Why are points,lines and planes importat in geometry?

Answer 1

Answer:

The concepts of points, lines, planes, line segments, and rays are crucial for creating a great foundation on which to understand Geometry. The symbolism is particularly important. ... A Point is a place in space that has no dimension. It is represented by a dot and is labeled with a capital letter.

Answer 2

Point, line, and plane, together with set, are the undefined terms that provide the starting place for geometry. When we define words, we ordinarily use simpler words, and these simpler words are in turn defined using yet simpler words. This process must eventually terminate; at some stage, the definition must use a word whose meaning is accepted as intuitively clear. Because that meaning is accepted without definition, we refer to these words as undefined terms. These terms will be used in defining other terms. Although these terms are not formally defined, a brief intuitive discussion is needed.

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