Bonsoir
Ex 22)
Aire ABCD = AB * D = 2.2 * 6 = 13.20 m²
Aire BCS = 2(BM * SM)/2 = BM * SM = 3 *1.80 = 5.40 m²
Aire ABSCD = 13.20 + 5.40 = 18.60 m²
2a)
Nombre de lots minimum = 18.60 / 1.20 = 15.5 soit 16 lots
2b)
Prix de 18 lots = 18 * 49 = 882 euros = prix normal
mais avec remise de 12 % il paiera
882 - (882*12/100) = 776.16 euros
Ex 2)
1)
Volume cylindre = r² * h * Pi = (20)² * 40 * Pi = 16 000 Pi = 50240 cm^3
2)
Volume 1/2 sphère = 1/2 ( 4/3 * r² * r ) = 4/6 Pi r^3 = 1/3 Pi * r^3 = 837 cm3 arrondi
3)
Volume total = 50 240 + 837 = 51 077 cm^3 = 0.051077 m^3
pour 1000 plots il faudra
0.051077 * 1000 = 51.077 m^3 de béton
