If two vectors are acting simultaneously at a point, then it can be represented both in magnitude and direction by the adjacent sides drawn from a point. According to the parallelogram law, the side OC of the parallelogram represents the resultant vector R.
parallelogram law of vector addition states that if two vectors act along two adjacent sides of a parallelogram both pointing away from the common points, then the resultant is represented by the diagonal of the parallelogram passing through the same common point.
