ex1
1/V=7×100×0,35=245
2/v=3,14×4×3=37,68
3/v=12×12×12=1728
4/v=7×3/2×57=598,5
5/v=2×3,14×27×27=4 578,12
6/v=590×58×39/2=667 290
ex2
1/h=5000/25×8=25
2/surface de la base =3,14×24=75,36
donc:r=
[tex] \sqrt{602.88 \div 75.36} [/tex]
d’où r=
[tex]2 \sqrt{2} [/tex]