Final answer:
The unfitted styles of the late 50’s that were the beginnings of the 60’s silhouette were known as A-line trapeze styles. These styles emphasized straight lines and loose, flowing shapes.
Step-by-step explanation:
The unfitted styles of the late 50’s that were the beginnings of the 60’s silhouette and were known as A-line trapeze styles. These styles emphasized straight lines and loose, flowing shapes, departing from the more tailored and fitted garments of previous decades. One example of this style is the shift dress which became popular in the 1960s. It was a straight-cut dress that hung loosely from the shoulders, creating an A-line silhouette.