Question

What is law of polygon of vectors?

Answer 1

Polygon law of vector addition states that if a number of vectors can be represented in magnitude and direction by the sides of a polygontaken in the same order, then their resultant is represented in magnitude and direction by the closing side of thepolygon taken in the opposite order.

Answer 2

If a number of vectors are represented as the sides of a polygon taken in order, the resultant is represented by the closing side of the polygon taken in the reverse order. In the case where number of forces act simultaneously at a point and keep it in equilibrium, this law states that, these forces can be represented as a sides of a polygon taken in order.      

Polygon Law of Vectors

    Vectors a,b,c,d,e,f are taken as the adjacent sides of the polygon; the vector shown with dashed line is taken in the reverse order to  represent the direction of the resultant ; its length is the magnitude of the resultant.