Final answer:
Bustles or corsets affect the line, shape, and silhouette of a garment, altering the way it drapes and the overall appearance of a person's figure.
Step-by-step explanation:
Bustles or corsets affect the line, shape, and silhouette of a garment. They can change the way a garment drapes and the overall appearance of a person's figure. For example, a corset can create a more defined waistline, while a bustle can add volume to the back of a skirt, altering the shape of the silhouette.