The distance between two points is the length of the path connecting them. P Q x 2 x 1 2 y 2 y 1 2. The angle usually represented as th or f the Greek letter phi is measured as the offset from the line collinear with the x -axis in the positive direction.
First we will calculate the module of vector b then the scalar product between vectors a and b to apply the vector projection formula described above.
The displacement of the particle would be the vector line AB headed in the direction A to B. A magnitude of the displacement can be obtained by visualizing the walking. The distance between two points is the length of the path connecting them. Some distance-vector protocols also take into account network latency and other factors that influence traffic on a given route.