Final answer:
A dashed line, such as the 'border' line, is an extra-heavy line in art that is made up of long dashes alternating with two short dashes.
Step-by-step explanation:
A dashed line is used in art to create texture and add interest to a drawing or painting. An example of a dashed line is the 'border' line, which is an extra-heavy line made up of long dashes alternating with two short dashes. This type of line can be used to outline the edges of shapes or to separate different areas in a composition.
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