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Diloux
@Diloux
June 2021
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bonjour, voila, je suis en seconde et j'ai un Dm de math a rendre pour demain mais je ne comprend vraiment RIEN !
je vous laisse regarder les photos et surtout merci d'avance...
"c' est l'ex 2)
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isapaul
Verified answer
Bonjour
a=3 = 45/15 ; b = 8/3 = 40/15 ; c = 13/15
a)
périmètre = a+b+c = 45/15 + 40/15 + 13/15 = 98/15
1/2 périmètre = p = (98/15)/2 = 98/30 = 49/15
b)
p - a = 49/15-45/15 = 4/15
p - b = 49/15-40/15 = 9/15
p - c = 49/15 - 13/15 = 36/15
Aire = V(49/15 ( 4/15)(9/15)(36/15) ) = V (63504/50625) = V 1.2544 = 1.12
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Diloux
mais comment savez vous tous sa ?
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Diloux
April 2019 | 0 Respostas
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Verified answer
Bonjoura=3 = 45/15 ; b = 8/3 = 40/15 ; c = 13/15
a)
périmètre = a+b+c = 45/15 + 40/15 + 13/15 = 98/15
1/2 périmètre = p = (98/15)/2 = 98/30 = 49/15
b)
p - a = 49/15-45/15 = 4/15
p - b = 49/15-40/15 = 9/15
p - c = 49/15 - 13/15 = 36/15
Aire = V(49/15 ( 4/15)(9/15)(36/15) ) = V (63504/50625) = V 1.2544 = 1.12