Drawing pie charts with simple angles
The Maths Habit
Which lunch did the most people choose? What fraction of the people chose it?
Pizza. Half of the people: it is half of the circle.
- Pie chart
- A circle cut into slices to show how many.
- Sector
- One slice of a pie chart.
- Angle
- How far a line turns. We measure it in degrees, °.
- Protractor
- A tool to measure and draw angles.
How many degrees is the pink part?
Draw the pie chart.
| Music | Angle |
|---|---|
| Rock | 180° |
| Pop | 90° |
| Jazz | 90° |
| Total | 360° |
Draw the pie chart.
| Pet | Angle |
|---|---|
| Dog | 90° |
| Cat | 180° |
| Fish | 90° |
| Total | 360° |
Draw the pie chart.
| Music | Angle |
|---|---|
| Rock | 180° |
| Pop | 90° |
| Jazz | 90° |
| Total | 360° |
Draw the pie chart.
| Colour | Angle |
|---|---|
| Red | 120° |
| Blue | 120° |
| Green | 120° |
| Total | 360° |
Draw the pie chart.
| Music | Angle |
|---|---|
| Rock | 180° |
| Pop | 90° |
| Jazz | 90° |
| Total | 360° |
Draw the pie chart.
| Drink | Angle |
|---|---|
| Tea | 180° |
| Milk | 120° |
| Juice | 60° |
| Total | 360° |
Draw the pie chart.
| Music | Angle |
|---|---|
| Rock | 180° |
| Pop | 90° |
| Jazz | 90° |
| Total | 360° |
Draw the pie chart.
| Travel | Angle |
|---|---|
| Bus | 90° |
| Car | 90° |
| Walk | 60° |
| Bike | 120° |
| Total | 360° |
36 people chose a lunch.
| Lunch | Frequency | Angle |
|---|---|---|
| Pizza | 18 | 180° |
| Pasta | 9 | 90° |
| Salad | 9 | 90° |
| Total | 36 | 360° |
12 people chose a band.
| Music | Frequency | Angle |
|---|---|---|
| Rock | 4 | 120° |
| Pop | 6 | 180° |
| Jazz | 2 | 60° |
| Total | 12 | 360° |
36 people chose a lunch.
| Lunch | Frequency | Angle |
|---|---|---|
| Pizza | 18 | 180° |
| Pasta | 9 | 90° |
| Salad | 9 | 90° |
| Total | 36 | 360° |
18 people chose a fruit.
| Fruit | Frequency | Angle |
|---|---|---|
| Apple | 6 | 120° |
| Pear | 3 | 60° |
| Plum | 9 | 180° |
| Total | 18 | 360° |
36 people chose a lunch.
| Lunch | Frequency | Angle |
|---|---|---|
| Pizza | 18 | 180° |
| Pasta | 9 | 90° |
| Salad | 9 | 90° |
| Total | 36 | 360° |
6 people said how they travel.
| Travel | Frequency | Angle |
|---|---|---|
| Bus | 1 | 60° |
| Car | 3 | 180° |
| Walk | 2 | 120° |
| Total | 6 | 360° |
36 people chose a lunch.
| Lunch | Frequency | Angle |
|---|---|---|
| Pizza | 18 | 180° |
| Pasta | 9 | 90° |
| Salad | 9 | 90° |
| Total | 36 | 360° |
36 people chose a hat.
| Hat | Frequency | Angle |
|---|---|---|
| Cap | 12 | 120° |
| Beanie | 9 | 90° |
| Visor | 6 | 60° |
| Sun hat | 9 | 90° |
| Total | 36 | 360° |
18 people chose a drink. Is it right? Thumbs up or thumbs down.
- AEach person is 20°Right
- B3 people is 3°Wrong: 60°
- C9 people is 180°Right
- D6 people is 60°Wrong: 120°
Answer sheet
36 people chose a colour. 14 chose red. What is the angle for red?
140°A pie chart shows 40 people. The angle for tea is 90°. How many people chose tea?
10In a pie chart, half of the circle is 15 people. How many people are in the pie chart?
30
18 people chose a drink: milk 9, juice 6, tea 3. Work out the angles.1Find the total.Total =182Divide 360 by the total.360° ÷18=20°3Multiply each one.
Milk 180°, Juice 120°, Tea 60°Draw the pie chart for question 1.1Put 0 on the line.2Count round to the angle.3Draw the line.
36 people chose a sport. Work out the angle for 9 people.
90°