Pie charts
Edexcel GCSE Maths revision on Pie charts. Aligned to the Pearson Edexcel GCSE Mathematics 1MA1 specification. This bank has 16 practice questions on this topic.
Sample questions (3 of 16)
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Question 1
A pie chart shows 120 people surveyed about their favourite colour. If the sector for blue represents 90 degrees, how many people chose blue?
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Answer: 30
A full circle is 360 degrees, so 90 degrees represents 90/360, which simplifies to one quarter. Calculating one quarter of the total 120 people gives 30 people who chose blue.
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Question 2
A pie chart displays data for 200 pets. The sector for dogs covers 144 degrees. How many dogs are represented?
- A) Eighty dogs in the survey data
- B) Seventy dogs in the survey data
- C) Ninety dogs in the survey data
- D) Sixty dogs in the survey data
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Answer: Eighty dogs in the survey data
The fraction is 144/360, which simplifies to 0.4. Multiplying 0.4 by 200 gives 80, which is the correct number of dogs represented in the pie chart.
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Question 3
If a pie chart sector for 'Walk' is 72 degrees, what percentage of the total data does this sector represent?
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Answer: 20
To find the percentage, divide the sector angle of 72 degrees by the total 360 degrees, then multiply by 100. This calculation results in 20 percent.
Want to test yourself on the remaining cards for this topic?
13 more questions on Pie charts — plus mistakes tracking and spaced repetition across the whole Maths spec.