Exercice 4
1.a) 190km
b) 2h30
c) 20km
2. Non
Exercice 5
1) Pcarré = 4 x ( + 2)
= 4 + 8
Prectangle = 2 x + 2 x ( + 4)
= 2 + 2 + 8
= 4 + 8
2) Pcarré = 4 x 3 + 8
= 20
Prectangle = 4 x 3 + 8
= 20
Pcarré = 4 x 5,2 + 8
= 28,8
Prectangle = 4 x 5,2 + 8
= 28,8
3) Pcarré = 4 + 8
Prectangle = 4 + 8
donc Pcarré = Prectangle