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juju1567
@juju1567
June 2021
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Salut j'ai un DM de maths niveau 5e a faire svp. L'exercice est en pièce jointe (80)
merci d'avance :)
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danielwenin
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Le triangle CAB est isocèle et angle B = 108° donc angle CAB = (180°-108°)/2 = 36°
pour angle DAE c'est pareil 36°
angle EAB = DAC + EAD + BAC => DAC == 108° - EAD + BAC = 108° - 72° = 36°
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juju1567
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salut, svp j'ai un exercice de maths sur les fractions, il est en piece jointe (ex 13)help svp, merci d'avance
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Verified answer
Le triangle CAB est isocèle et angle B = 108° donc angle CAB = (180°-108°)/2 = 36°pour angle DAE c'est pareil 36°
angle EAB = DAC + EAD + BAC => DAC == 108° - EAD + BAC = 108° - 72° = 36°