[size=200][b]Draw the bisector of two intersecting lines.[/b][/size][br][br][color=#000000]Dues rectes secants defineixen 4 angles, per tant tenen dues bisectrius que divideixen els 4 angles per la meitat.[/color][br][br][color=#9900ff]1st. Activate the "Bisector" tool[icon]/images/ggb/toolbar/mode_angularbisector.png[/icon].[/color][br][br][color=#9900ff]2nd. Click on lines "r" and "s".[/color][br][br][color=#9900ff]3rd. Name one bisector "a" and the other one "b".[/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]