Curriculum
Mathematics — First Preparatory
Unit 1: Numbers
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Unit 2: Algebra
0/4
Unit 3: Statistics
0/6
Unit 4: Geometry
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Text lesson
Pie Charts
Pie Charts
The rule and the steps
The rule and the steps
- Sector angle = (value of the part ÷ total) × 360°
- If the percentage is given, the sector angle = percentage × 3.6°, because 360 ÷ 100 = 3.6.
- Add all the values to get the total.
- Calculate the angle of each sector using the rule above.
- Check that the angles add up to 360°.
- Draw the sectors with a protractor and label each sector.
Pie Charts · 2 / 5