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Practice: Using 3.14 to find area and circumference

Practice: Using 3.14 to find area and circumference
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2016-03-31 07:43
CircleGeometric Construction
This example demonstrates how to use 3.14 to calculate the area and circumference of a circle. Users can input the area or circumference of a randomly generated circle to check their calculations. Key mathematical concepts include the formulas for the area and circumference of a circle. GeoGebra commands used include Circle, Point, Segment, and Textfield. Suitable for middle school and above students for geometry construction and calculation practice.

GeoGebra Commands & Parameters

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

AI Drawing Prompt Reference

Draw a circle with center H and a random radius. Pick a point I on the circle and draw a line segment from H to I. In input box 1, enter the area of the circle; in input box 2, enter the circumference. Use 3.14 as the value of pi for your calculations.
The prompt above was compiled from the original drawing commands and is for reference only.