convertir en radians les mesures données en degrès
a.180° b.90° c.120° d. 12°
merci beaucoup d’avance
a.180° b.90° c.120° d. 12°
merci beaucoup d’avance
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Verified answer
Un cercle entier c'est 360° ou 2π radians
π = 180°
π/2 = 90
120° = (2/3) 180°
π/3 = 60°
120° = 2π/3
12° = 2π/30 = π/15
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Bonsoir,
On a 360° = 2π donc :
180° = π
90° = π/2
120° = 2π/3
12° = 2π/30 = π/15