Parallelogram Law

Move the points at the tips of the two vectors to adjust their magnitudes and directions. Check "Show Parallelogram Law" to show your vectors positioned according to the Parallelogram law Check "Show Resultant" to see the resulting vector from adding u and v
Describe the positioning of the two vectors according to the parallelogram law. (Think about the relationship between their tails and tips). What is significant about the dotted lines? Do they have any relationship to the vectors? What is that relationship? Do they have any relationship to their tails or tips? How would you describe what the the resultant vector shows about vector addition according to this law.