A "polygon of forces" refers to a graphical method used to determine the resultant force of multiple concurrent forces acting on a body. Also known as a "force polygon", this technique involves representing each individual force as a vector and constructing a closed polygon by connecting the tip of one vector to the tail of the next. By measuring the length and direction of the closing vector, we can determine the resultant force's magnitude and direction. This approach is crucial in engineering and physics, aiding in the analysis of complex force systems. Synonyms for a "polygon of forces" include a "force polygon" and a "vector polygon."