Google Classroom
GeoGebraGeoGebra Classroom

Circle Radius, Circumference and Area

Change the radius R to see the changes in the Circumference and Area of the circle

What happens when we double the radius?

Change the value of the radius, R. How does the circumference change when you double the radius? R=1 to R=2? R=2 to R=4? Select all that are true.

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)