Chapitre 16 Aires et Volumes

R
A= 4πR2A= 4πR2= 4π×102= 400π2
2
A ≈ 1257 2
R
V=4
3πR3V=4
3πR3=4 3π×103=4000 3π3
3
V ≈ 4189 3

F F 0
F0F
k
F0k
F
F0k2
F
F0k3
F
1
3
SABCD
SO = 6
AB = 4,5
SO = 6 SO ×1
3= 6 ×1 3= 2
AABCD A=AB2= 4,52= 20,25 2
A0
A0=A × 1
32= 20,25 ×1 9= 2,25 2
VSABCD V=AB2×SO
3=20,25 ×6 3= 40,53
V0
V0=V × 1
33= 20,25 ×1 27 = 1,53

A=L×l
m m2
vv=d
t
km h
km/h km.h−1
m s
m/s m.s−1