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Sagot :

1) ACB = 67° car 180° - 85° - 28° = 67°


2) DCB = 180°-70°-28° = 82°

ECD = 180°-70°-53° = 57°

BFG = 180°- 90°-51° = 39°
(G = 90° car c’est un angle droit)

FGH = 180°-65°-52° = 63°

JDH = 180°-52°-26° = 102°

KHJ = 180°-85°-66° = 29°

Et après tu fais pareil pour les autres

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