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GeoGebraGeoGebra Classroom

Approximating the Area of a Circle

Adjust the sliders radius and n at the upper left of the Geogebra window
1) What do you observe about the relationship between the area of the polygon and the area of the cirlce as n increases? 2) Set radius =1 then set n=30. What do you observe? 3) Vary the values of n and radius and observe what happens. Based on your observations, what conjecture can you make?