The purpose of this applet is to allow the user to change the size of a circle's diameter and look for a relationship between the length of any circle's diameter and its circumference. Drag Point B to different places and record your findings.

[b]1.    [/b][b]How can you calculate the circumference when you know the diameter?[/b][b][/b][br][br][b]2.  How can you calculate the circumference when you know the radius?[/b][b][/b][br][br][b] [/b][b]3.  If you know the circumference, how can you calculate the diameter or radius?[/b][b][/b]