- Always check angles add to 360° - this catches calculation errors
- Use a calculator efficiently - calculate (value ÷ total) × 360° in one go
- Round sensibly - angles to the nearest degree usually
- Label clearly - include category names and values or percentages
- Start from 12 o'clock when drawing pie charts
- Draw largest sectors first for easier construction
- Include a key/legend when colors or patterns aren't clear
- Show your working especially for angle calculations
This exam tips covers Exam Tips for Pie Charts within Pie Charts for GCSE Mathematics. Revise Pie Charts in Statistics for GCSE Mathematics with 14 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 6 of 8 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Practice questions for Pie Charts
A pie chart shows the results of a survey about favourite holiday destinations. The sectors have the following angles: - Beach: 144° - City: 90° - Countryside: 72° - Mountains: 54° Which destination is the modal category?
A newspaper reports that a pie chart shows Company A has a 'dominant market share' in the smartphone industry, with their sector taking up nearly half the chart. A critic argues that the pie chart is misleading. Explain two limitations of using a pie chart in this context, and suggest what additional information would make the chart more useful.