DM pour demain et j'ai pas compris aider moi svp
Calculer l'aire de chaque figure apres avoir rappelé la formule utilise
A) carré de cote 7cm
B)Rectangle de longueur 8cm et de largeur 2,5cm
C)triangle de cote 6cm et de hauteur relative a ce cote 7cm
D) disque de rayon 7cm
E)disque de diamètre 20cm

By: USER8379
26 Agustus 2025 mathematiques 5 minutes
4.5
349 views 349 comments 13 shares

Question

Grade: Education Subject: mathematiques
DM pour demain et j'ai pas compris aider moi svp
Calculer l'aire de chaque figure apres avoir rappelé la formule utilise
A) carré de cote 7cm
B)Rectangle de longueur 8cm et de largeur 2,5cm
C)triangle de cote 6cm et de hauteur relative a ce cote 7cm
D) disque de rayon 7cm
E)disque de diamètre 20cm
Asked by:
349 Viewed 349 Answers

Answer (349)

Best Answer
(387)
A) Formule : coté*côté
    Aire : 7*7 = 49 mcarré.

B) Formule : longueur * largeur
    Aire : 8*2.5 = 20 mcarré

C) Formule : côté*hauteur relative / 2
    Aire : 6*7/2 = 21mcarré

D) Formule : rayon(carré)*pi
    Aire = 7(carré)*pi = 49pi

E) Formule : rayon(carré) * pi
  Aire = 10(carré)*pi = 100pi

Voilà :p
Answered on 26 Agustus 2025

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