Examine the parallelogram ABCD below. Interact with the diagram to answer the following questions. 1. What do you notice about the opposite sides of the parallelogram? 2. What do you notice about the diagonals of a parallelogram as they intersect one another? 3. What do you notice about the opposite sides in a parallelogram? 4. What do you notice about the consecutive angles in a parallelogram? Adjust parallelogram ABCD by dragging its points. Do the above properties still hold?