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On augmente de 20% la longueur et on diminue de 20% la largeur d'un rectangle de dimensions 30 cm sur 20 cm. Quelle est, en pourcentage, la variation de son aire ?
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Mar 11, 2022
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On augmente de 20% la longueur et on
diminue de 20% la largeur d'un rectangle de
dimensions 30 cm sur 20 cm. Quelle est, en
pourcentage, la variation de son aire ?
French
college
Farhad Rubel
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Answer:
La variation de son aire est de 10%
DanielGrech
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Mar 18, 2022
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DanielGrech
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