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）
Etkinliği Görüntüle Etkinliği Görüntüle

 

Anthony OR 柯志明 —

 
Kaynak Türü
Etkinlik
Etiketler
area  circle  circumference  exploration  perimeter  pi 
Hedef Grup (Yaş)
11 – 14
Dil
English (United Kingdom)
 
 
Görüntülenme
592746
Kaynağın yazarıyla iletişime geçin
Lisans
CC-BY-SA, GeoGebra Terms of Use
Türetilmiş Kaynaklar
Fläche eines Kreises
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Daha fazla göster…
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Paylaşan - Irina Vasilescu
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Paylaşan - Meghan Averill
Explore the Area of a Circle
Paylaşan - Anthony OR 柯志明
Flächeninhalt eines Kreises
Paylaşan - Barbara Lichtenegger
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Paylaşan - Bianca
Área do Círculo
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Observe a fórmula do comprimento da circunferência.
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Paylaşan - Ισίδωρος Γλαβάς
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Paylaşan - Alpay Bicer
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By exploring the activity below you can find the formula of the area of a circle.
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Paylaşan - Jacob Orner
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Paylaşan - Hurták Éva
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Paylaşan - JOSÉ ANTÔNIO DA SILVA ANDRADE
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Paylaşan - Kika Georgiou
 

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