Réponse :
cos43=PM/NM
PM = 8*cos(43)≈5,8508..≈5,8cm
NP :
cos47=PN/NM
NM =8*cos(47)=5,4559..≈5,5cm
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Réponse :
cos43=PM/NM
PM = 8*cos(43)≈5,8508..≈5,8cm
NP :
cos47=PN/NM
NM =8*cos(47)=5,4559..≈5,5cm