[math]\angle[/math]ACD and [math]\angle[/math]DCB form a Linear Pair.[br][br]

[br]1. Would you consider these two angles to be adjacent? Why or why not?[br]2. Move around Point D to see changes in the angles. What do you notice about [math]\angle[/math]ACD and [math]\angle[/math]BCD[br]3. From your exploration of this linear pair, how would you define a linear pair?