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Yaya2001
@Yaya2001
April 2019
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Besoin d'aide urgent SVP
Merci
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Awram
L'angle A et B = 90°
l'angle Dgauche = 180 - 40 - 90 = 60°
1 votes
Thanks 1
Awram
AD= 4cm
Awram
DB²= 4²+4² => DB= 5,6568
Awram
DC²= 5,6568² + 5,6568² => DC= 7,999
Awram
3) perimetre ABCD= 4+4+7,999+5,6568 = 21,7 cm
Awram
AD; DB et DC c'est question 2)
Awram
4) (4+8)x4 /2 = 24 cm²
Awram
voilaa
Awram
j'espère aussi, essaye de comparer avec un ami
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Bonjour, Pouvez vous m'aider SVP, c'est urgent je n'y comprends rien du tout ! Merci
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Pouvez vous aider mon fils SVP Merci beaucoup
Responda
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l'angle Dgauche = 180 - 40 - 90 = 60°