Bonjour,
Les formules des volumes des solides vus encours
Volume figure 1:
V= 1.8x2.2x11.3
V= 44.75 cm³
Volume figure 2: son rayon= 7.6/2
V= (πx3.8x3.8x 14.3 )/3
V= 216.24 cm³
Volume figure 3:
aire= (1.9x4.5)/3= 2.85 cm²
V= 2.85x3.9
V= 11.11 cm³
Volume figure 4:
V= (2.9x3.6x2.6)/3
V= 9.05 cm³
