SecantSecant Relationships  
 
Introduction  
In this section of MATHguide, you will learn a variety of relationships within a circle that involve chords and arcs. Here are the topics within this page:

Secants are lines that intersect circles more than once. Here is what a secant line looks like.
Learn more about other terminology related to circles in this MATHguide lesson.
esson: Circle Terminology
The sections that follow will address various properties that involve secant lines.
 
Within this section, we will explore the relationships of lengths between secant lines that intersect a circle and they also intersect each other outside the circle. Examine this diagram to view intersecting secant lines.
This video will explain the relationship and demonstrate how to use it on problems.
 
We will now look at the relationship between an angle and two arcs within the interior of that angle. Examine this diagram to view intersecting secant lines and the arcs it intercepts.
This video will explain the relationship and demonstrate how to use it on problems.
ideo: SecantSecant Arcs and Angle Relationship  
View the following instructional videos.
ideo: SecantSecant Partial Lengths Relationship
 
This quiz will check for your understanding.  
There are no activities at this time.  
Here are lessons that are related to chords.
esson: Circle Terminology 