Practice: Using 22/7 to Estimate Circle Area and Circumference

Practice: Using 22/7 to Estimate Circle Area and Circumference
Loading the math board and drawing, please wait…
2016-03-31 08:14
This example uses a randomly generated circle to practice estimating the area and circumference using the approximation 22/7. Key mathematical concepts include the formulas for the area and circumference of a circle. Using GeoGebra commands such as Circle, Point, Segment, Midpoint, and Textfield, students can visually understand these concepts. Suitable for middle school and above students learning geometry and approximation.

GeoGebra Commands & Parameters

  1. Circle(H, randomradius) → e
  2. Point(e) → I
  3. Segment(H, I) → f
  4. Midpoint(f) → A
  5. Textfield(GetArea) → InputBox1
  6. Textfield(GetCircumference) → InputBox2