How many line segments can be drawn by joining the given points?
 
                Answer: 
            
        6
-  Let us join the given points. On joining point A with point B, point C and point D, we get the following figure: 
 
- Now, we notice that we can form more line segments by joining point B with point C and point D.
 
- Now, we notice that we can form another line segment by joining the points B and C.
 
- Since, we cannot draw any more line segments, we can conclude that only 6 line segments can be drawn by joining the given points.
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