Power Theorem - Angle & Arc Relationships

As you adjust the circle and the secant lines, you will see the angle measures and the arc measures change. When the lines intersect INSIDE the circle, the measure of the angles is equal to the Average of the Intercepted Arcs. When the lines intersect OUTSIDE the circle, the measure of the angles is equal to Half the Difference of the Intercepted Arcs!

 

Mr.Krans

 
Material Type
Activity
Tags
power  thoerem  circle  secant  angles  intercepted  arcs  average 
Target Group (Age)
15 – 18
Language
English (United States)
 
 
GeoGebra version
4.4
Views
2014
Report a problem
 
 
© 2018 International GeoGebra Institute