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Shley
@Shley
January 2021
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Bonjour et excusez moi pour le manque de politesse comment faire pour calculer l'aire de deux quarts de disque sachant que le rayon est de 20m s'il vous plait , Merci d'avance
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nguyenso9
Verified answer
Bonsoir,
1/4 x 2 = 2/4 = 1/2
Aire d'un disque : pi x r x r
pi x 20 x 20 = 400pi m²
1/2 x 400pi = 200pi m² ≈ 628 m²
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Shley
Nguyenso 9 mrc mais la formule de l'aire du disque est de pi*r*r
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Verified answer
Bonsoir,1/4 x 2 = 2/4 = 1/2
Aire d'un disque : pi x r x r
pi x 20 x 20 = 400pi m²
1/2 x 400pi = 200pi m² ≈ 628 m²