Secant Lines and Line Segments
We just learned about line segments that connect two points on a circle. These line segments are called chords. If the segments are extended beyond the circle, they are called secants.
| A secant is a line or line segment that passes through a circle in two points. |
Take a look at the circle below.
Circle with Secant Lines
Notice that 
all pass through two points on the circle. All three of these lines are called secant lines.
