Bonsoir,
La somme des angles d'un triangle = 180°
Un angle plat = 180° (MNP)
ONM = 180- 110 => 70°
OMP =180 - 60 -70 => 50°
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Bonsoir,
La somme des angles d'un triangle = 180°
Un angle plat = 180° (MNP)
ONM = 180- 110 => 70°
OMP =180 - 60 -70 => 50°