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tristanble26
@tristanble26
January 2021
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BONJOUR Pouvez vous mettee pour l'exercice dd maths numéro 69 Merci de votre aide
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trudelmichel
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Bonjour,
soit OH hauteur issue de O sur IS
Oh est médiatrice de IS SH=1/2 IS SH=6.5/2=3.25OH
cos (ISH)=cos58°=0.52
cos(ISH)=SH/OH
0.52=3.25/OH
OH=3.25/0.52
OH=6.25
Aire OIS=1/2(OH x SH)
Aire=1/2(6.25x3.25)
Aire=10.15
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Verified answer
Bonjour,soit OH hauteur issue de O sur IS
Oh est médiatrice de IS SH=1/2 IS SH=6.5/2=3.25OH
cos (ISH)=cos58°=0.52
cos(ISH)=SH/OH
0.52=3.25/OH
OH=3.25/0.52
OH=6.25
Aire OIS=1/2(OH x SH)
Aire=1/2(6.25x3.25)
Aire=10.15