Bonjour,
a. Calcul de AH: appliquer le th de Pythagore, on a:
AD² = AH² + DH²
AH² = AD² - DH²
AH² = 125² - 100²
AH² = 5 625
AH = √5 625
AH= 75 m.
Calcul de MP: th de Thalès:
MP/AH= DM/AD
MP/75= 42/125
125 MP= 75 x 42
MP= 3 150/125
MP= 25.2 m
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Bonjour,
a. Calcul de AH: appliquer le th de Pythagore, on a:
AD² = AH² + DH²
AH² = AD² - DH²
AH² = 125² - 100²
AH² = 5 625
AH = √5 625
AH= 75 m.
Calcul de MP: th de Thalès:
MP/AH= DM/AD
MP/75= 42/125
125 MP= 75 x 42
MP= 3 150/125
MP= 25.2 m