[b][i]Move Points A, B, C, D to alter the angles formed at the intersection. [/i][/b][br]
1. Identify Vertical Angles. What relationship exist between pairs of [b]vertical angles[/b]? [br]
2. Identify Linear Pairs. What relationship exist between [b]linear pairs[/b]? [br]
3. Identify Adjacent Angles. What relationship exist between [b]adjacent[/b] angles?