[size=200][b]Draw two circles[/b][/size][br][br][color=#000000]Use the "Compass" tool to draw circles selecting a segment or two points to specify the radius and clicking on a point that should be the centre of the new circle.[/color][br][br][color=#9900ff]1st. Activate the "Compass" tool [icon]/images/ggb/toolbar/mode_compasses.png[/icon].[/color][br][br][color=#9900ff]2nd. Click on segment "s" and then on point "C", which will be the centre of the circle "d".[/color][br][br][color=#9900ff]3rd. Click on circle "c" and then on point "C", which will be the centre of the circle "e". You will get two concentric circles.[/color][br][br][color=#9900ff]4th. Activate the "Point" tool [icon]/images/ggb/toolbar/mode_point.png[/icon].[/color][br][br][color=#9900ff]5th. Click on circle "d". The point "D" appears.[/color][br][br][color=#9900ff]6th. Click on circle "e". The point "D" appears.[/color][br][br][color=#9900ff]7th. Activate the "Move" tool [icon]/images/ggb/toolbar/mode_move.png[/icon].[/color][br][br][color=#9900ff]8th. Open the Context Menu for the point "D" and click on "Animation on" option.[/color][br][br][color=#9900ff]9th. Open the Context Menu for the point "E" and click on "Animation on" option.[/color][br][br][color=#000000]The two curved arrows located in the upper right corner of the Graphics View allow you to reset the activity.[/color][br][color=#000000]If the activity is correct, you will get 10 points automatically.[/color]