Kerning
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change in elevlation
Margins
It is known as the midpoint of the line segment
It is known as an arch.
Circle graphs, or pie charts as they are also known, are pictorial representations of the relative frequencies of categorical data. A circle graph that depicts relative frequency displays the percentage of each category on each section of the circle. A pie chart is best to use when you only have a few categories and you want to demonstrate a part-to-whole relationship. Making each slice a different color adds to the visual appeal of this type of graph.