Relationship between Arc Length, Radius and Angle (in degrees) slider version

How is the angle (in degrees) at the centre related to arc length and radius? This version uses a slider to control the angle
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Lew W. S. —

 
Materialetype
Arbejdsark
Tags
angle  arc  circumference  degrees  length  ratio 
Målgruppe (alder)
12 – 18
Sprog
English (United States)
 
 
 
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