Divided Circle or pie diagram?

1. Divided circle is also a two dimensional diagram. different sectors are shown in a circle. A circle has 360 degrees which are divided according to the sectors given that may be area or production.
2. To calculate these divisions the following formula is used = Angel of the Sector = Sector data / Total data * 360⁰ 
3. uses: - this method is very useful to show population data like male/female, workers/ non workers, age composition etc. besides population figures it is also useful for land use pattern, export/import etc.