Curriculum
Mathematics — First Preparatory
Unit 1: Numbers
0/10
Unit 2: Algebra
0/4
Unit 3: Statistics
0/6
Unit 4: Geometry
0/6
Text lesson
Pie Charts
Pie Charts
Common mistakes
Common mistakes
- Using the value itself instead of its share of the total. The rule depends on the fraction of the total.
- Forgetting to multiply by 360° or by 3.6, which gives a very small angle.
- Not checking that the angles add up to 360°. If they do not, look for the error.
- Confusing a percentage with a sector angle. A sector that represents 25% has an angle of 90°.
Pie Charts · 4 / 5