Practice: Using 22/7 to Estimate Circle Area and Circumference
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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
Circle(H, randomradius) → ePoint(e) → ISegment(H, I) → fMidpoint(f) → ATextfield(GetArea) → InputBox1Textfield(GetCircumference) → InputBox2