CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.
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Transcript of CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.
![Page 1: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/1.jpg)
CONSTRUCTION DE LA SPIRALE D’OR
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Construire un rectangle d’or L1 = 18,3 cm l1 = 11,3 cm
![Page 3: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/3.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 11,3 et on obtient un petit rectangle d'or.
L2 = 11,3 cm l2 = 7 cm
![Page 4: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/4.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 7 cm et on obtient un petit rectangle d'or.
L3 = 7 cm l3 = 4,3 cm
![Page 5: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/5.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 4,3 cm et on obtient un petit rectangle d'or.
L4 = 4,3 cm l4 = 2,7 cm
![Page 6: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/6.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 2,7 cm et on obtient un petit rectangle d'or.
L5 = 2,7 cm l5 = 1,6 cm
![Page 7: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/7.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 1,5 cm et on obtient un petit rectangle d'or.
L5 = 0 ,5 cm l5 = 1,1 cm
![Page 8: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/8.jpg)
On retire le grand carré au grand rectangle d'or de côté a = 1 cm et on obtient un petit rectangle d'or.
L6 = 1 cm l6 = 0,5 cm
![Page 9: CONSTRUCTION DE LA SPIRALE DOR. Construire un rectangle dor L1 = 18,3 cm l 1 = 11,3 cm.](https://reader035.fdocuments.us/reader035/viewer/2022062318/55161d3855034694308b5828/html5/thumbnails/9.jpg)
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TRACER LES ARCS DE CERCLES DES CARRES
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