Dans un triangle EFG, l'angle ^EFG = 63o et l'angle^EGF =39o alors l'angle ^FEG=, 78o, 102o, 88o, 72o, Dans un triangle ABC, ^ABC = 60o et ^BAC =40o alors l'angle ^BCA=, 90o, 100o, 80o, 60o, le point d'intersection des mediatrices dans un triangle est le centre du cercle circonscrit, vrai, faux, le point d'intersection des hauteurs dans un triangle est le centre de gravité, vrai, faux, si on trace la bissectrice d'un angle droit, on obtient alors, 2 angles de 40o, 2 angles de 45o, 2 angles de 180o, 2 angles de 60o
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eb6-maths-les triangles
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