What are the parallelogram and the polygon methods?
Parallelogram method is a method for finding sum or resultant of two vectors.
The polygon method is a method for finding sum or resultant of more than two vectors. (Can be used for two vectors also).
In this method, two vectors
In polygon method of finding the sum or resultant of vectors
it may so happen that head of the last may end at the tail of first vector, resulting in a closed polygon. In such a case