This key facts covers Key Facts About 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 2 of 8 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 8
Practice
14 questions
Recall
20 flashcards
Key Facts About Pie Charts
- Total circle: Always represents 360°
- Sector angle: Proportional to the data value
- Formula: Angle = (Value ÷ Total) × 360°
- Best for: Categorical data showing parts of a whole
- Sectors: Each slice represents one category
- Labels: Should show category names and values/percentages
Keep building this topic
Read this section alongside the surrounding pages in Pie Charts. That gives you the full topic sequence instead of a single isolated revision point.
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.
Quick Recall Flashcards
14 questions on Pie Charts — practise free
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