Angles in the same segment

What is the relationship between the pair of angles shown? Is it possible to prove algebraically that this relationship will always hold true in a circle?

 

yijie91

 
Material Type
Activity
Tags
circle-angles  circle-geometry-investigations 
Target Group (Age)
15 – 18
Language
English (United Kingdom)
 
 
GeoGebra version
3.2
Views
1616
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