Year 6 · Maths · Statistics · Lesson 2
Pie charts
Interpret pie charts using fractions and angles, find amounts from sectors, find sector angles, and compare pie charts carefully.
19-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Know a circle is 360°
- Find amounts from fractions of a pie chart
- Find amounts from angles
- Find sector angles
- Compare pie charts
The method
- Fraction = angle ÷ 360.
- Simplify.
- Fraction of the total.
- Check the parts add up.
Key words: pie chart, sector, angle, fraction, proportion.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
50 people answered a survey. On the pie chart, Yes is half of the circle. How many is that?
- Step 1: Look at the pie chart
- Step 2: half of 50 = 50 ÷ 2 × 1 = 25
Answer: 25
Question 2
20 fruit were sold. On the pie chart, Apples is 1/4 of the circle. How many is that?
- Step 1: Look at the pie chart
- Step 2: 1/4 of 20 = 20 ÷ 4 × 1 = 5
Answer: 5
Question 3
48 children picked an activity. On the pie chart, Cycle is half of the circle. How many is that?
- Step 1: Look at the pie chart
- Step 2: half of 48 = 48 ÷ 2 × 1 = 24
Answer: 24