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Alizeyy
@Alizeyy
May 2019
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Bonjour ! Le 2 de la partie A, je ne comprend pas comment je pourrais montrer que l'aire du rectangle est 24-4x . Pouvez-vous m'aider svp ?
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Bonjour
Aire ABCD = 4 ( 6 - x) = 24 - 4 x = 24 - 8 = 16 cm²
Aire DCF = ( 4 x)/2 =
2 x = 4
question 2 résolue au dessus
24 - 4 x = 2 x
- 4 x - 2 x = - 24
- 6 x = - 24
x = 4
pour x = 4 , les 2 aires sont identiques
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Alizeyy
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Verified answer
BonjourAire ABCD = 4 ( 6 - x) = 24 - 4 x = 24 - 8 = 16 cm²
Aire DCF = ( 4 x)/2 = 2 x = 4
question 2 résolue au dessus
24 - 4 x = 2 x
- 4 x - 2 x = - 24
- 6 x = - 24
x = 4
pour x = 4 , les 2 aires sont identiques