en.wikipedia.org/wiki/Pie_chart

A pie chart (or a circle chart) is a circular statistical graphic which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each ...

en.wikipedia.org/wiki/Circle_graph

In graph theory, a circle graph is the intersection graph of a set of chords of a circle. That is, it is an undirected graph whose vertices can be associated with ...

www.mathplanet.com/education/pre-algebra/introducing-geometry/circle-graphs

A part of a circle is called an arc and an arc is named according to its angle. A circle graph, or a pie chart, is used to visualize information and data. A circle graph ...

nces.ed.gov/nceskids/graphing/classic/pie.asp

Pie Chart. There are all kinds of charts and graphs, some are easy to understand while others can be pretty tricky. There are so many different types because ...

www.mathsisfun.com/data/pie-charts.html

You can show the data by this Pie Chart: Pie Chart Example. It is a really good way to show relative sizes: it is easy to see which movie types are most liked, and ...

www.shodor.org/interactivate/activities/CircleGraph

Enter your data below, one per line: 7, school 2, eat 2, play outside 3, watch tv 8, sleep 1, chores 1, homework. © Shodor ...

www.khanacademy.org/math/pre-algebra/pre-algebra-math-reasoning/pre-algebra-picture-bar-graphs/v/reading-pie-graphs-circle-graphs

Reading Pie Graphs (Circle Graphs). Created by Sal Khan, Monterey Institute for Technology and Education. Google Classroom Facebook Twitter Email.

www.mathplayground.com/piechart.html

Represent data with a circle graph or pie chart at MathPlayground.com!

www.basic-mathematics.com/circle-graphs.html

This lesson shows how to read and construct circle graphs.

www.ixl.com/math/grade-4/circle-graphs

Fun math practice! Improve your skills with free problems in 'Circle graphs' and thousands of other practice lessons.