Theory:

A line segment has two end points. The line segment \(AB\) is represented by AB¯.
 
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A ray is a line that starts from a point \(A\) and extends without any end in a particular direction passing through \(B\) which is denoted byAB.
 
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If two lines \(m\) and \(l\) are parallel, then we denote it as \(m \parallel l\). Parallel lines never intersect each other.
 
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When two lines have a common point, they are called intersecting lines, and that point is called the point of intersection of the given two lines.
 
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If three or more points lie on the same line, they are called collinear points; otherwise, they are called non-collinear points.
 
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\(A\), \(B\) and \(C\) are collinear points and \(P\), \(Q\) and \(R\) are non-collinear points.