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bonjour
angle 3 = x
angle 1 = 2 x
angle 2 = 3 x
x + 2 x + 3 x = 180
6 x = 180
x = 30
angle 3 = 30 °
angle 2 = 60 °
angle 3 = 90 °
le triangle est rectangle
bon dimanche
bonjour
angle 3 = x
angle 1 = 2 x
angle 2 = 3 x
x + 2 x + 3 x = 180
6 x = 180
x = 30
angle 3 = 30 °
angle 2 = 60 °
angle 3 = 90 °
le triangle est rectangle
bon dimanche