Rolling a circle to find pi

Roll the circle to "straighten out" the circumference. Then use the diameter tool to determine the number of diameters in one circumference.

 

Duane Habecker

 
Resource Type
Activity
Tags
circle  circumference  diameter  exploration  perimeter  pi  ratio 
Target Group (Age)
11 – 14
Language
English (United States)
 
 
 
© 2018 International GeoGebra Institute