Chen Schwartz
07/30/2023 · High School
21. Le rayon d'un cercle est de 5 cm . Tu prendras \( \pi=3,15 \). 1. Détermine la longueur de l'arc intercepté par un angle de \( 120^{\circ} \); par un angle de \( 135^{\circ} \). 2. Quel angle intercepte un are de 14 cm ?
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1. Longueur de l'arc pour \( 120^{\circ} \) : 10,5 cm ; pour \( 135^{\circ} \) : 11,81 cm.
2. L'angle qui intercepte un arc de 14 cm est d'environ \( 160^{\circ} \).
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