Identify the circular chart divided into triangular areas proportional to the percentages of the whole.

Identify the circular chart divided into triangular areas proportional to the percentages of the whole.

• A. Pie chart
• B. Sectors
• C. Line graph
• D. Bar graph

Answer: (A)

The main idea is how we represent parts of a whole. A circular chart that is divided into slices whose sizes correspond to each part’s share is called a pie chart. Each slice, or sector, is formed by radii from the center to the edge, and the total of all the slice angles adds up to 360 degrees, mapping to 100% of the whole. This setup makes it easy to compare how large each portion is relative to the whole at a glance. The other options don’t fit because a line graph shows changes over a variable and connects points, while a bar graph uses bars to compare quantities across categories; “sectors” are the pieces within a circle, not a chart type.

The main idea is how we represent parts of a whole. A circular chart that is divided into slices whose sizes correspond to each part’s share is called a pie chart. Each slice, or sector, is formed by radii from the center to the edge, and the total of all the slice angles adds up to 360 degrees, mapping to 100% of the whole. This setup makes it easy to compare how large each portion is relative to the whole at a glance. The other options don’t fit because a line graph shows changes over a variable and connects points, while a bar graph uses bars to compare quantities across categories; “sectors” are the pieces within a circle, not a chart type.