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Eliohalabi2000
@Eliohalabi2000
June 2021
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C est une photo plzzzzzzzzzzzzzzzz
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slyz007
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L'échelle est un triangle isocèle. La bissectrice issue du sommet isocèle est aussi la médiatrice. Notons H la hauteur et D la distance entre les 2 pieds.
1) Cos(42/2)=H/3,2
H=3,2*Cos21=2,99cm
2) Sin21=(D/2)/3,2
D/2=3,2*sin21=1,15
Donc D=2,30cm
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Lista de comentários
Verified answer
L'échelle est un triangle isocèle. La bissectrice issue du sommet isocèle est aussi la médiatrice. Notons H la hauteur et D la distance entre les 2 pieds.1) Cos(42/2)=H/3,2
H=3,2*Cos21=2,99cm
2) Sin21=(D/2)/3,2
D/2=3,2*sin21=1,15
Donc D=2,30cm