Odpowiedź:
A
Pp - pole podstawy = (a + b) * h/2 = (12 + 9) * 4/2 = 21 * 2 = 42 cm²
V - objętość = Pp * H = 42 cm² * 16 cm = 672 cm³
B
Pp = ab/2 = 36 * 25/2 = 900/2 = 450 cm²
V = Pp * H = 450 cm² * 53 cm = 23850 cm³
C
Pp = d₁d₂/2 = 48 * 60/2 = 2880/2 = 1440 cm²
V = Pp * H = 1440 cm² * 80 cm = 115200 cm³
