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Area of a Sector by Gibel Cushing

Area of a Sector by Gibel Cushing
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2016-03-05 00:29
CircleAngleGeometric Construction
This example demonstrates how to calculate the area of a sector using GeoGebra. The core mathematical concepts involved include circle, angle, and sector area formula. Construction highlights the use of commands and objects such as Circle, Point, Rotate, Angle, and CircleSector in GeoGebra. Suitable for middle school students and above to learn and understand the calculation method of sector area.

GeoGebra Commands & Parameters

  1. Circle(A, radius) → c
  2. Point(c) → B
  3. Rotate(B, θ, A) → B'
  4. Angle(B, A, B') → α
  5. CircleSector(A, B, B') → d