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Jessicabambou
@Jessicabambou
May 2019
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Bonjour J'aurais besoin d'aide à faire un exercice sur remercie toute personne m'ayant aidé.
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aymanemaysae
Bonjour ;
Lr triangle ADB est rectangle en D ;
donc on a : BD = AB cos(74°) et AD = AB sin(74°) ;
donc : AD/BD = (AB sin(74°))/(AB cos(74°)) = tan(74°) ;
donc : AD = BD tan(74°) = 15 x tan(74°) ≈ 52,31 m ≈ 52 m .
1 votes
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jessicabambou
merci beaucoup
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Lr triangle ADB est rectangle en D ;
donc on a : BD = AB cos(74°) et AD = AB sin(74°) ;
donc : AD/BD = (AB sin(74°))/(AB cos(74°)) = tan(74°) ;
donc : AD = BD tan(74°) = 15 x tan(74°) ≈ 52,31 m ≈ 52 m .