(i) In figure, the line PQ and the circle have no common point. In this case, PQ is called a non-intersecting line with respect to the circle.
(ii) In Figure, there are two common points A and B that the line PQ and the circle have. In this case, we call the line PQ a secant of the circle .
(iii)In Figure, there is only one point A which is common to the line PQ and the circle. In this case, the line is called a tangent to the circle.