Ex 8
Les points A,B,C et D sont alignés et : AB=6cm ; AC=2,3cm ; BD=2,8cm.
Ils sont placés dans l'ordre suivant : A,C,D et B.
a) Calculer la longueur CD.
b)Peut-on placer un point E tel que AE = 4,5 cm et EB =1,5cm?
c)Peut-on placer un point F tel que AF= 3,2cm et FB = 2 cm?

By: USER7227
28 Agustus 2025 mathematiques 5 minutes
4.5
306 views 306 comments 13 shares
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Question

Grade: Education Subject: mathematiques
Ex 8
Les points A,B,C et D sont alignés et : AB=6cm ; AC=2,3cm ; BD=2,8cm.
Ils sont placés dans l'ordre suivant : A,C,D et B.
a) Calculer la longueur CD.
b)Peut-on placer un point E tel que AE = 4,5 cm et EB =1,5cm?
c)Peut-on placer un point F tel que AF= 3,2cm et FB = 2 cm?
Asked by:
306 Viewed 306 Answers

Answer (306)

Best Answer
(146)
a) 2,8+2,3=5,1
6-5,1=0,9
alors CD=0,9cm

b) oui car AE+ED=6cm

c) Non car il faut que AF+FB=6 cm, hors AF+FB=5,2cm
Answered on 28 Agustus 2025
(163)
a)CD=(AB-AC)+BD
(6-2.3)+2.8
3.7+2.8
=6.5
b)non,car EB feras 1cm
c)non.car FB feras 2.8cm
Voilas j'espère que c'est juste bonne chance
Answered on 28 Agustus 2025

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