Google Classroom
GeoGebraGeoGebra Classroom

Definition of a Circle with questions

A circle is the set of all points in a plane that are at a given distance from a fixed point, the center.
  • Enter a number less than 5 for the distance.
  • Press the Play button to construct random points on that distance from point A.

How does the app help demonstrate the definition of a circle? (A circle is the set of all points in a plane that are at a given distance from a fixed point, the center.)

How does this definition compare with your previous perception of a circle?

Go back and explore the other apps. Does this definition of the circle change your opinion of whether a polygon can ever become a circle?

Explain your reasoning.