They are called straight intersecting lines intersect a circumference those two particular points. And as these cutting points get closer, the line approaches the point and since there is only one point that touches the circumference it is called a tangent. In general, a secant line can be defined as those lines that are in the same plane that have to be cut at a point. It should be noted that a line is the union of a series of points that are aligned in the same direction, and this is named using the lowercase letter; depending on the direction of the same they can become vertical, horizontal or inclined; In addition, according to their relative position, there are parallel lines that do not intersect and secants that do, forming 90º angles.
Secant lines can be classified as oblique and perpendicular. Obliques can be defined as those that intersect at a given point forming angles equal two to two, that is, two equal or similar obtuse angles and two equal or similar acute angles because they are opposite or opposite. On the other hand, there are the perpendicular lines that also intersect at a single point, with the particularity that the angles that are formed are straight 90º and all four are completely equal or similar. On the contrary, if two lines do not have any common point, and are in the same plane, they are called parallel lines.
Therefore we can also find the concurrent or convergent lines that are the lines manage to join or that the distance that exists between them is reducing more and more until they intersect at a point.
