POINTS
A point determines a location. If we mark three points on a paper, we would be required to distinguish them. For this they are denoted by a single capital letter like A, B, C.
These are some models for a point :  

These points will be read as point A, point B and point C.           Of course, the dots have to be invisibly thin.
 A point has no length and no breadth.

 

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