maelissedarcelie maelissedarcelie
  • 17-11-2022
  • Mathematics
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une echelle de 6 metre est appuyée contre un mur vertical de 7 metre de haut . par mesure de securité ,on estime que l'angle que fait l'echelle avec le sol doit etre 75° . 1) calculer la distance AB entre le pied de l'echelle et le mur . donnez le resultat arondie au cm

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