What are some type of lines, and are their purposes?

There are five types of lines -

✴Horizontal line
✴ Vertical line
✴ Parallel line
✴Skew line
✴Perpendicular line

Purpose of lines in art -
Lines play an integral rule in the creation of art. Lines service as an artists fingersprint and function as one of her fundamental tools. when an artist produce enough lines on a piece of paper or Canvas,the artwork begins to assume both its shape and meaning. artist Make Line using a variety of media, including pencil, pen and paint.

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The answer is a : varying the size of objects or subjects, so that some are smaller than others and the illusion of depth is created.hope this : )