[size=200][b]Draw the perpendicular bisector "m" of segment "s"[/b][/size][br][br][color=#9900ff]1st. Activate the "Perpendicular bisector" tool [icon]/images/ggb/toolbar/mode_linebisector.png[/icon] and click on segment "s"[/color][br][br][color=#9900ff]2nd. Name the perpendicular bisector "m".[/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]