The legend chart element will tells the category of data that each line represents the lines.
Lines:
Lines refers a one-dimensional figure, which has length but no width.
Given,
suppose that a line chart includes several lines.
Here we need to identify the chart element will tell you the category of data that each line represents.
Basically, chart is a visual representation of numeric data in a worksheet. And it helps you to identify trends, make comparisons, and recognize patterns in the numbers.
In order to get the clear information that appears in your chart, you can add a chart title, axis titles, and data labels.
The element legend or data table is used to represents the category of the data.
To know more about Lines here.
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