State converse law of triangle of forces.

Explanation

Statement : If three concurrent coplanar forces acting at a point a body are in static equilibrium, then they may be represented by the three sides of a triangle taken in order.
From the fig (ii) AB, BC and CA are drawn
Parallel to OP,OR,and OQ respectively here
`(P)/(AB)=(Q)/(AC)=(R )/(BC)= "constant"`