A pie chart is a type of graph used to show proportions close proportion A part-to-whole comparison. Where each part of a ratio is considered as a fraction of the whole. Eg, in the ratio 3 : 5 ...

Here’s how to choose between a bar chart and a pie chart. When to use a bar chart Bar charts have two axes: categories (months of the year) on one and numeric value (the number of visitors to a ...

They are popular because they are popular, which is a circular argument that suits a pie chart. But there are some serious downsides to using the humble pie. Here’s why you should (almost) never ...

Learn about pie charts with this BBC Bitesize Maths article. For students between the ages of 11 and 14.