Its a circular chart divided into different sectors where each sector represents some quantity. In graph theory a circle graph is the intersection graph of a set of chords of a circle. On a graph all those points on the circle can be determined and plotted using x y x y coordinates.
Numerical information and data can be displayed in a variety of ways that include but are not limited to charts tables plots and graphs.
That is it is an undirected graph whose vertices can be associated with chords of a circle such that two vertices are adjacent if and only if the corresponding chords cross each other. Area of an Equilateral Triangle. SplashLearn is an award winning math learning program used by more than 40 Million kids for fun math practice. It helps in the comparison of each sector with the whole data.