Odpowiedzi

2010-01-27T16:09:37+01:00
V = Pp*H
Pc=2Pp+Pb

Pp = 5*12/2= 30 cm²
H = 10 cm
V = Pp*h = 30 cm² * 10 cm = 300 cm³

Pb = (5 cm+12 cm+13 cm)* 10 cm = 300 cm²
Pc = 2Pp + Pb = 60 cm² + 300 cm² = 360 cm²