Draw four noncollinear points a, b,c, d. then sketch line ab, ray bc, and segment ad

A noncollinear points is a set of points that don't lie on the same line in the graph so base on your question, the A B C D are the noncollinear point which means that they are plotted randomly without forming a line and when the it is form in segment, they might create a polygon or a quadrilateral. I hope this would help