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Shulk22
@Shulk22
January 2021
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bonjour j'ai besoin de vos reponses svp merci
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chrystine
Verified answer
Bonsoir
a) l'angleF=180-90-45=45°
dans le triangle EFG rectangle en E
tan (EGF)=EF/EG
tan 45°= EF/7
7*tan (45)=7 cm
et FG=EG/FG
cos 45°=7/FG
7/cos(45)≈9.9 cm
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Verified answer
Bonsoira) l'angleF=180-90-45=45°
dans le triangle EFG rectangle en E
tan (EGF)=EF/EG
tan 45°= EF/7
7*tan (45)=7 cm
et FG=EG/FG
cos 45°=7/FG
7/cos(45)≈9.9 cm