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Secant
Definition Of Secant
Secant is a straight line that intersects a curve at two or more points.
More About Secant
Secant of a circle crosses the circle only at two points.
The length of the secant of a circle is less than its diameter.
A chord of a circle is defined as a part or segment of the secant whose end points lie on the circle.
Video Examples: Geometry - Secants
Example of Secant
The line shown in the figure is intersecting the circle in two distinct points. So, the line is a secant of the circle.
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Solved Example on Secant
Ques: Identify the secant in the figure shown.
Choices:
D. None of the above
Correct Answer: C
Solution:
Step 1:The line that intersects the circle in exactly two points is called a secant.
Step 2: In the given figure, 
and 
are intersecting the circle in exactly two points.
Step 3: But is a line segment.
Step 4: Hence, is the secant.