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Pie Chart by VINOTH

Pie Chart by VINOTH
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2020-04-13 19:32
Coordinate GeometryProbability & StatisticsGeometric Construction
This example demonstrates the construction of a pie chart. Key mathematical concepts include angles and properties of circles. Using GeoGebra commands such as Sum, Circle, and Rotate, a dynamic pie chart can be created. Suitable for middle school and above students to learn data statistics and chart drawing.

GeoGebra Commands & Parameters

  1. Sum(B2:B6) → B7
  2. Sum(D2:D4) → a
  3. Sum(C2:C6) → C7
  4. Sum(D2:D6) → D7
  5. Circle(A, B) → c
  6. Rotate(B, D2°, A) → B'
  7. Angle(B, A, B') → α
  8. Rotate(B', D3°, A) → B''
  9. Angle(B', A, B'') → β
  10. Rotate(B'', D4°, A) → B'''
  11. Angle(B'', A, B''') → γ
  12. Rotate(B''', D5°, A) → C
  13. Angle(B''', A, C) → δ
  14. Rotate(C, D6°, A) → C'
  15. Angle(C, A, C') → ε