Area of Circles

Explore the formula for the area of a circle, by cutting it into sectors and rearranging the sectors to form a figure close to a parallelogram. By increasing the no. of sectors, students observe that the figure tends to a rectangle and get the formula for the area of the circle by finding the area of this rectangle. See also how I design the applets in http://www.geogebratube.org/material/show/id/15215.                                        Anthony Or. GeoGebra Institute of Hong Kong.                                        orchiming@gmail.com (繁體中文版:http://www.geogebratube.org/material/show/id/550)

 

Anthony OR 柯志明

 
Baliabide-mota
Lan-orria
Fitxak
area  circle  circumference  exploration  perimeter  pi 
Helburu-taldea (adina)
11 – 14
Hizkuntza
English (United Kingdom)
 
 
Ikustaldiak
592374
Contact author of resource
Lizentzia
CC-BY-SA, GeoGebra Terms of Use
Baliabide Eratorriak
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Honek partekatua: Florian Sonner
Erakutsi Gehiago…
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Honek partekatua: Joseph Kim
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Honek partekatua: Joseph Kim
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Honek partekatua: Irina Vasilescu
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Honek partekatua: Meghan Averill
Explore the Area of a Circle
Honek partekatua: Anthony OR 柯志明
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Honek partekatua: Barbara Lichtenegger
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Honek partekatua: Bianca
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Honek partekatua: Aline Lemmertz
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Honek partekatua: Aline Lemmertz
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Honek partekatua: Ισίδωρος Γλαβάς
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Honek partekatua: Jens L. Lassen
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Honek partekatua: Laura Santos
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Honek partekatua: Ricard
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Honek partekatua: C.J. Carlson
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Honek partekatua: Birgit Lachner
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Honek partekatua: Alpay Bicer
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Honek partekatua: Reima Halmetoja
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Honek partekatua: etik
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Honek partekatua: irina_hagman
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Honek partekatua: anishkumar741
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Honek partekatua: Misty Koenig
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Honek partekatua: David Kessler
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Honek partekatua: lina7
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Honek partekatua: Richard
Izengabeko Eraikuntza
Honek partekatua: Monika Musilek
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Honek partekatua: Tracey Weise
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Honek partekatua: Daniela Leone
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Honek partekatua: Steve Phelps
Izengabeko Eraikuntza
Honek partekatua: Martin
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Cópia de Area of Circles
Honek partekatua: JOSÉ ANTÔNIO DA SILVA ANDRADE
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Honek partekatua: Ruben González Míguez
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Honek partekatua: Bijay Balal
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Honek partekatua: Math Isip
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Honek partekatua: v_hofmann
Izengabeko Eraikuntza
Honek partekatua: Kika Georgiou
 
 
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