[size=200][b]The perpendicular bisector is the perpendicular line to a segment that runs through its midpoint.[/b][/size][br][br][color=#000000]GeoGebra allows you to construct geometric objects in various ways. You can use other tools to draw the perpendicular bisector.[/color][br][br][color=#9900ff]1st. Activate the "Midpoint or center" tool [icon]/images/ggb/toolbar/mode_midpoint.png[/icon] and click on segment "s". You can also click on the points "A" and "B".[/color][br][br][color=#9900ff]2nd. Name the midpoint of the segment "M".[/color][br][br][color=#9900ff]3rd. Activate the "Perpendicular line" tool [icon]/images/ggb/toolbar/mode_orthogonal.png[/icon] and click on both the segment "s" and the midpoint "M".[/color][br][br][color=#9900ff]4th. Name the new line "m". Remember that Geogebra distinguishes between capital and small letters.[/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]