GED Math Practice Test

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What kind of chart is a circular chart divided into triangular areas proportional to percentages of the whole?

Bar graph
Line graph
Number line
Pie chart

The correct answer is: Pie chart

The correct choice is indeed a pie chart. A pie chart is specifically designed to illustrate how a whole is divided into various parts, with each segment representing a percentage of the total. The visual representation helps to easily compare different categories in relation to the entire dataset. Each segment, or slice, is proportional to the quantity it represents, making pie charts particularly effective for understanding composition at a glance. Other types of charts mentioned do not fulfill the criteria described. A bar graph displays data using rectangular bars, which do not convey percentages in a circular format. A line graph presents data points connected by lines to show trends over time rather than proportional relationships. A number line is simply a straight line with numbers at equal intervals, which does not relate to the concept of representing parts of a whole visually in a circular manner.