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Secants which intersects outside a circle

High School Math based on the topics required for the Regents Exam conducted by NYSED.

 

 

Angles in a Circle
This episode deals with angles formed with vertices outside the circle.

 

 

Two Types of Angles Formed by Secants
Learn how two types of secants form angles.

 

 

Secants and Arcs Problem Solving
Learn how to solve problems for secants and arcs.

 

 

Secants:
A secant is a line, ray, or line segment that intersects a circle in two places.
Three points are covered:
(1) secants that intersect in a circle which divide each other proportionally,
(2) the angle formed by secants which intersects in a circle and is half the sum of the intercepted arcs,
and (3) two secants drawn from the same point outside a circle that form an angle whose measure is half the difference of the intercepted arcs.

 

 

 

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