Blue parallel lines cut across by a red transversal. [br][br]The angle pair shown below are called corresponding angles. What do you notice about their position? Their angle measures? [br][br][b]Drag points B and C to a variety of positions and note how angles p and t relate to each other.[br][br][/b]Use the check boxes to make other pairs of corresponding angles active and see how moving B and C affect these new angle pairs. [br][br]What can you conclude about corresponding angles?